Overview of the 815 Area Code
Geographic Coverage of the 815 Area Code
All 275 cities- 151,837
- 147,486
- Bolingbrookalso 331 · 63074,756
- Tinley Parkalso 464 · 70854,856
- Plainfieldalso 331 · 63048,881
- 41,513
Rockford Area Codes Overview
- 779Same territory
- 815This page
What cities does area code 815 cover?
| City | State | Population | Population in 815 | % of listed-city population | % of City |
|---|---|---|---|---|---|
| Joliet | IL | 151,837 | 151,837 | 9.8% | 100.0% |
| Rockford | IL | 147,486 | 147,486 | 9.5% | 100.0% |
| Bolingbrook | IL | 74,756 | 6,468 | 4.8% | 8.7% |
| Tinley Park | IL | 54,856 | 0 | 3.6% | 0.0% |
| Plainfield | IL | 48,881 | 41,896 | 3.2% | 85.7% |
| Crystal Lake | IL | 41,513 | 35,874 | 2.7% | 86.4% |
| Romeoville | IL | 41,177 | 36,567 | 2.7% | 88.8% |
| DeKalb | IL | 40,491 | 40,491 | 2.6% | 100.0% |
| McHenry | IL | 28,825 | 28,825 | 1.9% | 100.0% |
| New Lenox | IL | 28,480 | 28,480 | 1.8% | 100.0% |
| Lockport | IL | 26,915 | 26,915 | 1.7% | 100.0% |
| Woodstock | IL | 25,892 | 25,892 | 1.7% | 100.0% |
| Belvidere | IL | 25,325 | 25,325 | 1.6% | 100.0% |
| Homer Glen | IL | 24,852 | 0 | 1.6% | 0.0% |
| Loves Park | IL | 23,636 | 23,636 | 1.5% | 100.0% |
| Kankakee | IL | 23,535 | 23,535 | 1.5% | 100.0% |
| Freeport | IL | 23,140 | 23,140 | 1.5% | 100.0% |
| Machesney Park | IL | 22,839 | 22,839 | 1.5% | 100.0% |
| Frankfort | IL | 21,160 | 21,160 | 1.4% | 100.0% |
| Crest Hill | IL | 20,223 | 20,223 | 1.3% | 100.0% |
| Mokena | IL | 19,915 | 0 | 1.3% | 0.0% |
| Sycamore | IL | 18,968 | 18,968 | 1.2% | 100.0% |
| Ottawa | IL | 18,775 | 18,775 | 1.2% | 100.0% |
| Shorewood | IL | 18,522 | 18,522 | 1.2% | 100.0% |
| Bourbonnais | IL | 18,083 | 18,083 | 1.2% | 100.0% |
| Bradley | IL | 15,298 | 15,298 | 1.0% | 100.0% |
| Dixon | IL | 15,156 | 15,156 | 1.0% | 100.0% |
| Morris | IL | 14,587 | 14,587 | 0.9% | 100.0% |
| Sterling | IL | 14,535 | 14,535 | 0.9% | 100.0% |
| Channahon | IL | 14,392 | 14,392 | 0.9% | 100.0% |
| Minooka | IL | 12,907 | 12,907 | 0.8% | 100.0% |
| Streator | IL | 12,295 | 12,295 | 0.8% | 100.0% |
| Pontiac | IL | 11,054 | 11,054 | 0.7% | 100.0% |
| Roscoe | IL | 10,981 | 10,981 | 0.7% | 100.0% |
| Fox Lake | IL | 10,925 | 0 | 0.7% | 0.0% |
| Manhattan | IL | 10,772 | 10,772 | 0.7% | 100.0% |
| Peru | IL | 9,793 | 9,793 | 0.6% | 100.0% |
| Rochelle | IL | 9,510 | 9,510 | 0.6% | 100.0% |
| LaSalle | IL | 9,424 | 9,424 | 0.6% | 100.0% |
| Harvard | IL | 9,408 | 9,408 | 0.6% | 100.0% |
| Frankfort Square | IL | 9,276 | 9,276 | 0.6% | 100.0% |
| Manteno | IL | 9,241 | 9,241 | 0.6% | 100.0% |
| Rock Falls | IL | 8,614 | 8,614 | 0.6% | 100.0% |
| Island Lake | IL | 8,066 | 0 | 0.5% | 0.0% |
| South Beloit | IL | 7,983 | 7,983 | 0.5% | 100.0% |
| Rockton | IL | 7,861 | 7,861 | 0.5% | 100.0% |
| Marengo | IL | 7,699 | 7,699 | 0.5% | 100.0% |
| Princeton | IL | 7,667 | 7,667 | 0.5% | 100.0% |
| Volo | IL | 7,361 | 0 | 0.5% | 0.0% |
| Sandwich | IL | 7,299 | 7,299 | 0.5% | 100.0% |
| Mendota | IL | 6,922 | 6,922 | 0.5% | 100.0% |
| Lakemoor | IL | 6,451 | 0 | 0.4% | 0.0% |
| Johnsburg | IL | 6,428 | 6,428 | 0.4% | 100.0% |
| Braidwood | IL | 6,245 | 6,245 | 0.4% | 100.0% |
| Coal City | IL | 5,810 | 5,810 | 0.4% | 100.0% |
| Wilmington | IL | 5,629 | 5,629 | 0.4% | 100.0% |
| Spring Grove | IL | 5,554 | 5,554 | 0.4% | 100.0% |
| Genoa | IL | 5,514 | 5,514 | 0.4% | 100.0% |
| Spring Valley | IL | 5,404 | 5,404 | 0.4% | 100.0% |
| Wonder Lake | IL | 5,296 | 5,296 | 0.3% | 100.0% |
| Poplar Grove | IL | 5,165 | 5,165 | 0.3% | 100.0% |
| Marseilles | IL | 4,779 | 4,779 | 0.3% | 100.0% |
| Lake Holiday | IL | 4,761 | 4,761 | 0.3% | 100.0% |
| Cortland | IL | 4,592 | 4,592 | 0.3% | 100.0% |
| Watseka | IL | 4,495 | 4,495 | 0.3% | 100.0% |
| Lakewood | IL | 4,287 | 4,287 | 0.3% | 100.0% |
| Dwight | IL | 4,032 | 4,032 | 0.3% | 100.0% |
| Morrison | IL | 3,988 | 3,988 | 0.3% | 100.0% |
| Byron | IL | 3,764 | 3,764 | 0.2% | 100.0% |
| Oglesby | IL | 3,626 | 3,626 | 0.2% | 100.0% |
| Fulton | IL | 3,581 | 3,581 | 0.2% | 100.0% |
| Fairbury | IL | 3,571 | 3,571 | 0.2% | 100.0% |
| Oregon | IL | 3,570 | 3,570 | 0.2% | 100.0% |
| Pistakee Highlands | IL | 3,454 | 0 | 0.2% | 0.0% |
| Ingalls Park | IL | 3,314 | 3,314 | 0.2% | 100.0% |
| Galena | IL | 3,207 | 3,207 | 0.2% | 100.0% |
| Momence | IL | 3,169 | 3,169 | 0.2% | 100.0% |
| Winnebago | IL | 2,907 | 2,907 | 0.2% | 100.0% |
| Cherry Valley | IL | 2,888 | 2,888 | 0.2% | 100.0% |
| Mount Morris | IL | 2,792 | 2,792 | 0.2% | 100.0% |
| Savanna | IL | 2,713 | 2,713 | 0.2% | 100.0% |
| Diamond | IL | 2,702 | 2,702 | 0.2% | 100.0% |
| Lena | IL | 2,666 | 2,666 | 0.2% | 100.0% |
| Preston Heights | IL | 2,575 | 2,575 | 0.2% | 100.0% |
| Davis Junction | IL | 2,534 | 2,534 | 0.2% | 100.0% |
| Fairmont | IL | 2,459 | 2,459 | 0.2% | 100.0% |
| Sheridan | IL | 2,413 | 2,413 | 0.2% | 100.0% |
| Seneca | IL | 2,310 | 2,310 | 0.2% | 100.0% |
| Elwood | IL | 2,248 | 2,248 | 0.2% | 100.0% |
| Polo | IL | 2,238 | 2,238 | 0.2% | 100.0% |
| Amboy | IL | 2,224 | 2,224 | 0.1% | 100.0% |
| Richmond | IL | 2,123 | 2,123 | 0.1% | 100.0% |
| Pecatonica | IL | 2,058 | 2,058 | 0.1% | 100.0% |
| Lake Summerset | IL | 2,048 | 2,048 | 0.1% | 100.0% |
| Rockdale | IL | 1,980 | 1,980 | 0.1% | 100.0% |
| Hinckley | IL | 1,976 | 1,976 | 0.1% | 100.0% |
| Prairie Grove | IL | 1,951 | 1,951 | 0.1% | 100.0% |
| Prophetstown | IL | 1,906 | 1,906 | 0.1% | 100.0% |
| Crystal Lawns | IL | 1,872 | 1,872 | 0.1% | 100.0% |
| Somonauk | IL | 1,761 | 1,761 | 0.1% | 100.0% |
| Chenoa | IL | 1,699 | 1,699 | 0.1% | 100.0% |
| Gilman | IL | 1,674 | 1,674 | 0.1% | 100.0% |
| Stockton | IL | 1,668 | 1,668 | 0.1% | 100.0% |
| Kirkland | IL | 1,621 | 1,621 | 0.1% | 100.0% |
| Earlville | IL | 1,598 | 1,598 | 0.1% | 100.0% |
| Thomson | IL | 1,595 | 1,595 | 0.1% | 100.0% |
| De Pue | IL | 1,573 | 1,573 | 0.1% | 100.0% |
| Waterman | IL | 1,543 | 1,543 | 0.1% | 100.0% |
| Limestone | IL | 1,524 | 1,524 | 0.1% | 100.0% |
| Herscher | IL | 1,493 | 1,493 | 0.1% | 100.0% |
| Maple Park | IL | 1,482 | 1,482 | 0.1% | 100.0% |
| Lanark | IL | 1,463 | 1,463 | 0.1% | 100.0% |
| East Dubuque | IL | 1,457 | 1,457 | 0.1% | 100.0% |
| Mount Carroll | IL | 1,433 | 1,433 | 0.1% | 100.0% |
| Forreston | IL | 1,403 | 1,403 | 0.1% | 100.0% |
| Capron | IL | 1,402 | 1,402 | 0.1% | 100.0% |
| Hebron | IL | 1,396 | 1,396 | 0.1% | 100.0% |
| Ladd | IL | 1,387 | 1,387 | 0.1% | 100.0% |
| Durand | IL | 1,383 | 1,383 | 0.1% | 100.0% |
| Gardner | IL | 1,366 | 1,366 | 0.1% | 100.0% |
| Lakewood Shores | IL | 1,347 | 1,347 | 0.1% | 100.0% |
| North Utica | IL | 1,343 | 1,343 | 0.1% | 100.0% |
| Granville | IL | 1,331 | 1,331 | 0.1% | 100.0% |
| Toluca | IL | 1,321 | 1,321 | 0.1% | 100.0% |
| Clifton | IL | 1,295 | 1,295 | 0.1% | 100.0% |
| Onarga | IL | 1,294 | 1,294 | 0.1% | 100.0% |
| Grant Park | IL | 1,282 | 1,282 | 0.1% | 100.0% |
| Warren | IL | 1,276 | 1,276 | 0.1% | 100.0% |
| Walnut | IL | 1,265 | 1,265 | 0.1% | 100.0% |
| Hillcrest | IL | 1,206 | 1,206 | 0.1% | 100.0% |
| Chatsworth | IL | 1,162 | 1,162 | 0.1% | 100.0% |
| Malta | IL | 1,137 | 1,137 | 0.1% | 100.0% |
| Bull Valley | IL | 1,136 | 1,136 | 0.1% | 100.0% |
| St. Anne | IL | 1,130 | 1,130 | 0.1% | 100.0% |
| Milford | IL | 1,111 | 1,111 | 0.1% | 100.0% |
| Kingston | IL | 1,095 | 1,095 | 0.1% | 100.0% |
| The Galena Territory | IL | 1,058 | 1,058 | 0.1% | 100.0% |
| Stillman Valley | IL | 1,052 | 1,052 | 0.1% | 100.0% |
| Flanagan | IL | 1,023 | 1,023 | 0.1% | 100.0% |
| Forrest | IL | 1,019 | 1,019 | 0.1% | 100.0% |
| Chebanse | IL | 1,011 | 1,011 | 0.1% | 100.0% |
| Milledgeville | IL | 992 | 992 | 0.1% | 100.0% |
| Odell | IL | 983 | 983 | 0.1% | 100.0% |
| Mazon | IL | 982 | 982 | 0.1% | 100.0% |
| Newark | IL | 980 | 980 | 0.1% | 100.0% |
| McCullom Lake | IL | 968 | 968 | 0.1% | 100.0% |
| Wenona | IL | 955 | 955 | 0.1% | 100.0% |
| Ashton | IL | 939 | 939 | 0.1% | 100.0% |
| Sheldon | IL | 930 | 930 | 0.1% | 100.0% |
| Leland | IL | 928 | 928 | 0.1% | 100.0% |
| Timberlane | IL | 902 | 902 | 0.1% | 100.0% |
| Franklin Grove | IL | 876 | 876 | 0.1% | 100.0% |
| Wyanet | IL | 858 | 858 | 0.1% | 100.0% |
| Essex | IL | 853 | 853 | 0.1% | 100.0% |
| Shabbona | IL | 852 | 852 | 0.1% | 100.0% |
| Shannon | IL | 841 | 841 | 0.1% | 100.0% |
| Ringwood | IL | 837 | 837 | 0.1% | 100.0% |
| Hanover | IL | 828 | 828 | 0.1% | 100.0% |
| New Milford | IL | 807 | 807 | 0.1% | 100.0% |
| Paw Paw | IL | 806 | 806 | 0.1% | 100.0% |
| Sheffield | IL | 798 | 798 | 0.1% | 100.0% |
| Cissna Park | IL | 778 | 778 | 0.1% | 100.0% |
| Pearl City | IL | 756 | 756 | 0.1% | 100.0% |
| Hennepin | IL | 747 | 747 | 0.1% | 100.0% |
| Orangeville | IL | 739 | 739 | 0.1% | 100.0% |
| Piper City | IL | 737 | 737 | 0.1% | 100.0% |
| Tonica | IL | 736 | 736 | 0.1% | 100.0% |
| Braceville | IL | 722 | 722 | 0.1% | 100.0% |
| Ashkum | IL | 716 | 716 | 0.1% | 100.0% |
| South Wilmington | IL | 715 | 715 | 0.1% | 100.0% |
| Tiskilwa | IL | 714 | 714 | 0.1% | 100.0% |
| Lost Nation | IL | 708 | 708 | 0.1% | 100.0% |
| Union | IL | 690 | 690 | 0.1% | 100.0% |
| Elizabeth | IL | 688 | 688 | 0.1% | 100.0% |
| Tampico | IL | 675 | 675 | 0.0% | 100.0% |
| La Moille | IL | 670 | 670 | 0.0% | 100.0% |
| Aroma Park | IL | 653 | 653 | 0.0% | 100.0% |
| Cedarville | IL | 645 | 645 | 0.0% | 100.0% |
| Dalzell | IL | 643 | 643 | 0.0% | 100.0% |
| Godley | IL | 634 | 634 | 0.0% | 100.0% |
| Hopkins Park | IL | 625 | 625 | 0.0% | 100.0% |
| Millington | IL | 624 | 624 | 0.0% | 100.0% |
| Creston | IL | 618 | 618 | 0.0% | 100.0% |
| Holiday Hills | IL | 606 | 606 | 0.0% | 100.0% |
| Danforth | IL | 570 | 570 | 0.0% | 100.0% |
| Davis | IL | 568 | 568 | 0.0% | 100.0% |
| Como | IL | 567 | 567 | 0.0% | 100.0% |
| Apple Canyon Lake | IL | 558 | 558 | 0.0% | 100.0% |
| Dayton | IL | 537 | 537 | 0.0% | 100.0% |
| Lyndon | IL | 529 | 529 | 0.0% | 100.0% |
| Crescent City | IL | 528 | 528 | 0.0% | 100.0% |
| Grand Ridge | IL | 508 | 508 | 0.0% | 100.0% |
| Mark | IL | 507 | 507 | 0.0% | 100.0% |
| Cullom | IL | 506 | 506 | 0.0% | 100.0% |
| Dakota | IL | 479 | 479 | 0.0% | 100.0% |
| Chadwick | IL | 476 | 476 | 0.0% | 100.0% |
| Ohio | IL | 458 | 458 | 0.0% | 100.0% |
| Sun River Terrace | IL | 450 | 450 | 0.0% | 100.0% |
| Cornell | IL | 441 | 441 | 0.0% | 100.0% |
| Lostant | IL | 430 | 430 | 0.0% | 100.0% |
| Grand Detour | IL | 429 | 429 | 0.0% | 100.0% |
| Cherry | IL | 420 | 420 | 0.0% | 100.0% |
| Leaf River | IL | 419 | 419 | 0.0% | 100.0% |
| Scales Mound | IL | 419 | 419 | 0.0% | 100.0% |
| German Valley | IL | 417 | 417 | 0.0% | 100.0% |
| Naplate | IL | 414 | 414 | 0.0% | 100.0% |
| Saunemin | IL | 406 | 406 | 0.0% | 100.0% |
| Monroe Center | IL | 406 | 406 | 0.0% | 100.0% |
| Carbon Hill | IL | 383 | 383 | 0.0% | 100.0% |
| Sublette | IL | 372 | 372 | 0.0% | 100.0% |
| Garden Prairie | IL | 352 | 352 | 0.0% | 100.0% |
| Bonfield | IL | 342 | 342 | 0.0% | 100.0% |
| Apple River | IL | 333 | 333 | 0.0% | 100.0% |
| Martinton | IL | 321 | 321 | 0.0% | 100.0% |
| Greenwood | IL | 316 | 316 | 0.0% | 100.0% |
| Seatonville | IL | 312 | 312 | 0.0% | 100.0% |
| Malden | IL | 310 | 310 | 0.0% | 100.0% |
| Ransom | IL | 309 | 309 | 0.0% | 100.0% |
| Lee | IL | 308 | 308 | 0.0% | 100.0% |
| Chemung | IL | 308 | 308 | 0.0% | 100.0% |
| Beaverville | IL | 292 | 292 | 0.0% | 100.0% |
| Manlius | IL | 290 | 290 | 0.0% | 100.0% |
| Rock City | IL | 287 | 287 | 0.0% | 100.0% |
| Millbrook | IL | 282 | 282 | 0.0% | 100.0% |
| Bureau Junction | IL | 278 | 278 | 0.0% | 100.0% |
| Lisbon | IL | 274 | 274 | 0.0% | 100.0% |
| McNabb | IL | 274 | 274 | 0.0% | 100.0% |
| Winslow | IL | 270 | 270 | 0.0% | 100.0% |
| Compton | IL | 266 | 266 | 0.0% | 100.0% |
| Cedar Point | IL | 261 | 261 | 0.0% | 100.0% |
| Rutland | IL | 255 | 255 | 0.0% | 100.0% |
| Magnolia | IL | 254 | 254 | 0.0% | 100.0% |
| Donovan | IL | 238 | 238 | 0.0% | 100.0% |
| Buckingham | IL | 238 | 238 | 0.0% | 100.0% |
| Woodland | IL | 237 | 237 | 0.0% | 100.0% |
| Cabery | IL | 233 | 233 | 0.0% | 100.0% |
| Kangley | IL | 229 | 229 | 0.0% | 100.0% |
| Steward | IL | 223 | 223 | 0.0% | 100.0% |
| Standard | IL | 222 | 222 | 0.0% | 100.0% |
| Troy Grove | IL | 222 | 222 | 0.0% | 100.0% |
| Plattville | IL | 221 | 221 | 0.0% | 100.0% |
| Sammons Point | IL | 215 | 215 | 0.0% | 100.0% |
| Verona | IL | 207 | 207 | 0.0% | 100.0% |
| Menominee | IL | 206 | 206 | 0.0% | 100.0% |
| Thawville | IL | 205 | 0 | 0.0% | 0.0% |
| Long Point | IL | 199 | 199 | 0.0% | 100.0% |
| Reddick | IL | 195 | 195 | 0.0% | 100.0% |
| Wellington | IL | 195 | 195 | 0.0% | 100.0% |
| Caledonia | IL | 182 | 182 | 0.0% | 100.0% |
| Kempton | IL | 177 | 177 | 0.0% | 100.0% |
| Hooppole | IL | 173 | 173 | 0.0% | 100.0% |
| Arlington | IL | 165 | 165 | 0.0% | 100.0% |
| Coleta | IL | 161 | 161 | 0.0% | 100.0% |
| Dana | IL | 157 | 157 | 0.0% | 100.0% |
| Campus | IL | 140 | 140 | 0.0% | 100.0% |
| Dover | IL | 133 | 133 | 0.0% | 100.0% |
| Iroquois | IL | 131 | 131 | 0.0% | 100.0% |
| Papineau | IL | 130 | 130 | 0.0% | 100.0% |
| West Brooklyn | IL | 128 | 128 | 0.0% | 100.0% |
| Nelson | IL | 125 | 125 | 0.0% | 100.0% |
| Symerton | IL | 124 | 124 | 0.0% | 100.0% |
| Ridott | IL | 123 | 123 | 0.0% | 100.0% |
| Leonore | IL | 121 | 121 | 0.0% | 100.0% |
| Harmon | IL | 117 | 117 | 0.0% | 100.0% |
| Nora | IL | 110 | 110 | 0.0% | 100.0% |
| Strawn | IL | 102 | 102 | 0.0% | 100.0% |
| Emington | IL | 99 | 99 | 0.0% | 100.0% |
| Kinsman | IL | 87 | 87 | 0.0% | 100.0% |
| East Brooklyn | IL | 79 | 79 | 0.0% | 100.0% |
| Adeline | IL | 75 | 75 | 0.0% | 100.0% |
| New Bedford | IL | 75 | 75 | 0.0% | 100.0% |
| Irwin | IL | 67 | 67 | 0.0% | 100.0% |
| Union Hill | IL | 52 | 52 | 0.0% | 100.0% |
| Hollowayville | IL | 44 | 44 | 0.0% | 100.0% |
| Deer Grove | IL | 39 | 39 | 0.0% | 100.0% |
City population is shown in full; each city's share inside 815 is measured from Census tract centroids.
What counties does area code 815 cover?
| County | State | Population in 815 | % of area-code footprint | % of County |
|---|---|---|---|---|
| Will County | IL | 451,500 | 27% | 65% |
| Winnebago County | IL | 285,350 | 17% | 100% |
| McHenry County | IL | 185,107 | 11% | 60% |
| LaSalle County | IL | 109,658 | 6% | 100% |
| Kankakee County | IL | 107,502 | 6% | 100% |
| DeKalb County | IL | 100,420 | 6% | 100% |
| Boone County | IL | 53,448 | 3% | 100% |
| Grundy County | IL | 52,533 | 3% | 100% |
| Ogle County | IL | 51,788 | 3% | 100% |
| Whiteside County | IL | 48,648 | 3% | 87% |
| Stephenson County | IL | 44,630 | 3% | 100% |
| Livingston County | IL | 35,815 | 2% | 100% |
| Lee County | IL | 34,145 | 2% | 100% |
| Bureau County | IL | 30,529 | 2% | 92% |
| Iroquois County | IL | 24,325 | 1% | 90% |
| Jo Daviess County | IL | 22,035 | 1% | 100% |
| Kendall County | IL | 19,939 | 1% | 15% |
| Carroll County | IL | 15,702 | 1% | 100% |
| Cook County | IL | 10,072 | 1% | 0% |
| Putnam County | IL | 5,637 | 0% | 100% |
| McLean County | IL | 4,981 | 0% | 3% |
| Marshall County | IL | 2,046 | 0% | 17% |
| Ford County | IL | 1,745 | 0% | 13% |
Sources:
- Census PEP Vintage 2024 (city populations)
- · 2020 Census tract centroids with NANP and TIGERweb boundaries (footprint, counties, city shares)
- · NANPA NPA and CO Code reports (dates, prefixes)
- · Methodology
Has area code 815 been reported for unwanted calls?
Yes – 4,453 FTC complaints, May 29 – Oct 1, 2026.
- 56% robocalls
- ↓ 4% vs prior period
- FTC data, retrieved 2026-10-05
Most-reported subjects
- Other38%1,714
- Reducing your debt (credit cards, mortgage, student loans)24%1,047
- Calls pretending to be government, businesses, or family and friends14%618
Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints.
Which prefixes and exchanges belong to area code 815?
78% assigned to a telco
- 78% Landline
- 22% Wireless
- 0% Unknown
of 784 | ||
| Prefix | Usage | Carrier |
|---|---|---|
| (815)200- | Landline | Paetec Communications |
| (815)201- | Landline | Bandwidth.Com Clec |
| (815)202- | Wireless | New Cingular Wireless Pcs |
| (815)203- | Wireless | Usa Mobility Wireless |
| (815)204- | Wireless | Usa Mobility Wireless |
| (815)205- | Landline | Centurylink Communications |
| (815)206- | Landline | Illinois Bell Tel Co |
| (815)207- | Landline | At&T |
| (815)208- | Landline | Mediacom Telephony Of Illinois |
| (815)209- | Landline | Level 3 Communications |
| (815)210- | Wireless | New Cingular Wireless Pcs |
| (815)212- | Wireless | T-Mobile Usa |
| (815)213- | Wireless | United States Cellular |
| (815)214- | Landline | Rcn Telecom Services Of Illinios |
| (815)215- | Landline | First Communications |
| (815)216- | Wireless | Verizon Wireless |
| (815)217- | Landline | Digital Network Access Communications |
| (815)218- | Wireless | Verizon Wireless |
| (815)219- | Wireless | Sprint Spectrum |
| (815)220- | Landline | Illinois Bell Tel Co |
| (815)221- | Landline | Teleport Communications America |
| (815)222- | Wireless | Verizon Wireless |
| (815)223- | Landline | Illinois Bell Tel Co |
| (815)224- | Landline | Illinois Bell Tel Co |
| (815)225- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)226- | Landline | Illinois Bell Tel Co |
| (815)227- | Landline | Illinois Bell Tel Co |
| (815)228- | Wireless | New Cingular Wireless Pcs |
| (815)229- | Landline | Illinois Bell Tel Co |
| (815)230- | Landline | Level 3 Communications |
| (815)231- | Landline | Illinois Bell Tel Co |
| (815)232- | Landline | Frontier North |
| (815)233- | Landline | Frontier North |
| (815)234- | Landline | Frontier North |
| (815)235- | Landline | Frontier North |
| (815)236- | Wireless | New Cingular Wireless Pcs |
| (815)237- | Landline | Illinois Bell Tel Co |
| (815)238- | Wireless | Verizon Wireless |
| (815)239- | Landline | Frontier North |
| (815)240- | Landline | Charter Fiberlink - Illinois |
| (815)241- | Landline | American Messaging Services |
| (815)242- | Landline | Bandwidth.Com Clec |
| (815)243- | Wireless | United States Cellular |
| (815)244- | Landline | Centurylink |
| (815)245- | Wireless | New Cingular Wireless Pcs |
| (815)246- | Landline | Frontier North |
| (815)247- | Landline | Frontier North |
| (815)248- | Landline | Frontier North |
| (815)249- | Landline | Frontier North |
| (815)250- | Landline | Comcast Ip Phone |
| (815)251- | Landline | Centurylink |
| (815)252- | Wireless | New Cingular Wireless Pcs |
| (815)253- | Landline | Frontier Communications Of Illinois |
| (815)254- | Landline | Illinois Bell Tel Co |
| (815)255- | Landline | Choice One Comm Il |
| (815)256- | Landline | Stelle Tel. Co. |
| (815)257- | Wireless | Illinois Valley Cellular Rsa 2-Ii Partnership |
| (815)258- | Wireless | New Cingular Wireless Pcs |
| (815)259- | Landline | Centurylink |
| (815)260- | Wireless | Sprint Spectrum |
| (815)261- | Landline | Mcimetro Access Transmission Services |
| (815)262- | Wireless | Verizon Wireless |
| (815)263- | Wireless | Verizon Wireless |
| (815)264- | Landline | Frontier North |
| (815)265- | Landline | Illinois Bell Tel Co |
| (815)266- | Landline | Frontier North |
| (815)267- | Landline | Mcimetro Access Transmission Services |
| (815)268- | Landline | Illinois Bell Tel Co |
| (815)269- | Landline | Frontier Communications Of The Carolinas |
| (815)270- | Landline | Charter Fiberlink - Illinois |
| (815)271- | Landline | Mcimetro Access Transmission Services |
| (815)272- | Landline | Mcimetro Access Transmission Services |
| (815)273- | Landline | Centurylink |
| (815)274- | Wireless | New Cingular Wireless Pcs |
| (815)275- | Wireless | Verizon Wireless |
| (815)276- | Landline | Teleport Communications America |
| (815)277- | Landline | Teleport Communications America |
| (815)278- | Wireless | Verizon Wireless |
| (815)279- | Landline | American Messaging Services |
| (815)280- | Landline | Teleport Communications America |
| (815)281- | Wireless | United States Cellular |
| (815)282- | Landline | Illinois Bell Tel Co |
| (815)283- | Landline | Mediacom Telephony Of Illinois |
| (815)284- | Landline | Centurylink |
| (815)285- | Landline | Centurylink |
| (815)286- | Landline | Frontier North |
| (815)287- | Landline | Illinois Bell Tel Co |
| (815)288- | Landline | Centurylink |
| (815)289- | Wireless | United States Cellular |
| (815)290- | Landline | At&T |
| (815)291- | Wireless | United States Cellular |
| (815)292- | Landline | Bergen Tel. Co. |
| (815)293- | Landline | Illinois Bell Tel Co |
| (815)294- | Wireless | Usa Mobility Wireless |
| (815)295- | Wireless | T-Mobile Usa |
| (815)296- | Landline | Telnyx |
| (815)297- | Landline | Frontier North |
| (815)298- | Wireless | Verizon Wireless |
| (815)299- | Wireless | United States Cellular |
| (815)300- | Landline | Illinois Bell Tel Co |
| (815)301- | Landline | Level 3 Communications |
| (815)302- | Wireless | Sprint Spectrum |
| (815)303- | Wireless | Illinois Valley Cellular Rsa 2-I Partnership |
| (815)304- | Landline | Level 3 Communications |
| (815)305- | Landline | Level 3 Communications |
| (815)306- | Landline | Level 3 Communications |
| (815)307- | Landline | Level 3 Communications |
| (815)308- | Landline | Level 3 Communications |
| (815)309- | Landline | Aero North Communications |
| (815)310- | Landline | Level 3 Communications |
| (815)312- | Landline | Ymax Communications |
| (815)313- | Landline | Level 3 Communications |
| (815)314- | Landline | Level 3 Communications |
| (815)315- | Landline | Level 3 Communications |
| (815)316- | Landline | Tds Metrocom |
| (815)317- | Landline | Level 3 Communications |
| (815)318- | Landline | Level 3 Communications |
| (815)319- | Wireless | United States Cellular |
| (815)320- | Landline | Peerless Network Of Illinois |
| (815)321- | Landline | Xo Illinois |
| (815)322- | Landline | Level 3 Communications |
| (815)323- | Landline | Level 3 Communications |
| (815)324- | Landline | Mediacom Telephony Of Illinois |
| (815)325- | Wireless | New Cingular Wireless Pcs |
| (815)326- | Wireless | New Cingular Wireless Pcs |
| (815)327- | Landline | Level 3 Communications |
| (815)328- | Landline | Level 3 Communications |
| (815)329- | Landline | At&T |
| (815)330- | Landline | First Communications |
| (815)331- | Landline | Level 3 Communications |
| (815)332- | Landline | Frontier North |
| (815)333- | Landline | Level 3 Communications |
| (815)334- | Landline | Illinois Bell Tel Co |
| (815)335- | Landline | Frontier North |
| (815)336- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)337- | Landline | Illinois Bell Tel Co |
| (815)338- | Landline | Illinois Bell Tel Co |
| (815)339- | Landline | Frontier North |
| (815)340- | Landline | Comcast Ip Phone |
| (815)341- | Wireless | New Cingular Wireless Pcs |
| (815)342- | Wireless | New Cingular Wireless Pcs |
| (815)343- | Wireless | New Cingular Wireless Pcs |
| (815)344- | Landline | Illinois Bell Tel Co |
| (815)345- | Landline | Level 3 Communications |
| (815)346- | Landline | Level 3 Communications |
| (815)347- | Wireless | Verizon Wireless |
| (815)348- | Landline | Choice One Comm Il |
| (815)349- | Landline | Xo Illinois |
| (815)350- | Landline | Aero North Communications |
| (815)351- | Wireless | Verizon Wireless |
| (815)352- | Landline | Level 3 Communications |
| (815)353- | Wireless | Verizon Wireless |
| (815)354- | Wireless | Verizon Wireless |
| (815)355- | Wireless | Verizon Wireless |
| (815)356- | Landline | Illinois Bell Tel Co |
| (815)357- | Landline | Illinois Bell Tel Co |
| (815)358- | Landline | C-R Telephone Co. |
| (815)359- | Landline | Centurylink |
| (815)360- | Landline | Aero North Communications |
| (815)361- | Landline | Level 3 Communications |
| (815)362- | Landline | Frontier North |
| (815)363- | Landline | Illinois Bell Tel Co |
| (815)364- | Landline | Level 3 Communications |
| (815)365- | Landline | Frontier North |
| (815)366- | Landline | Level 3 Communications |
| (815)367- | Landline | Frontier North |
| (815)368- | Landline | Frontier North |
| (815)369- | Landline | Frontier North |
| (815)370- | Wireless | Verizon Wireless |
| (815)371- | Landline | Level 3 Communications |
| (815)372- | Landline | Illinois Bell Tel Co |
| (815)373- | Landline | Choice One Comm Il |
| (815)374- | Landline | Choice One Comm Il |
| (815)375- | Wireless | United States Cellular |
| (815)376- | Landline | Frontier North |
| (815)377- | Landline | Level 3 Communications |
| (815)378- | Wireless | Sprint Spectrum |
| (815)379- | Landline | Frontier North |
| (815)380- | Landline | Level 3 Communications |
| (815)381- | Landline | Illinois Bell Tel Co |
| (815)382- | Wireless | New Cingular Wireless Pcs |
| (815)383- | Wireless | New Cingular Wireless Pcs |
| (815)384- | Landline | Frontier North |
| (815)385- | Landline | Illinois Bell Tel Co |
| (815)386- | Wireless | Verizon Wireless |
| (815)387- | Landline | Illinois Bell Tel Co |
| (815)388- | Wireless | Sprint Spectrum |
| (815)389- | Landline | Illinois Bell Tel Co |
| (815)390- | Landline | Comcast Ip Phone |
| (815)391- | Landline | Illinois Bell Tel Co |
| (815)392- | Landline | Kinsman Mutual Tel. Co. |
| (815)393- | Landline | Frontier North |
| (815)394- | Landline | Illinois Bell Tel Co |
| (815)395- | Landline | Illinois Bell Tel Co |
| (815)396- | Landline | Frontier North |
| (815)397- | Landline | Illinois Bell Tel Co |
| (815)398- | Landline | Illinois Bell Tel Co |
| (815)399- | Landline | Illinois Bell Tel Co |
| (815)400- | Landline | Mediacom Telephony Of Illinois |
| (815)401- | Landline | Level 3 Communications |
| (815)402- | Landline | Level 3 Communications |
| (815)403- | Wireless | Sprint Spectrum |
| (815)404- | Wireless | Sprint Spectrum |
| (815)405- | Wireless | Sprint Spectrum |
| (815)406- | Landline | Frontier North |
| (815)407- | Landline | Illinois Bell Tel Co |
| (815)408- | Landline | First Communications |
| (815)409- | Wireless | Verizon Wireless |
| (815)410- | Landline | Level 3 Communications |
| (815)412- | Landline | Level 3 Communications |
| (815)413- | Landline | First Communications |
| (815)414- | Wireless | New Cingular Wireless Pcs |
| (815)415- | Landline | Illinois Bell Tel Co |
| (815)416- | Landline | Illinois Bell Tel Co |
| (815)417- | Landline | Illinois Bell Tel Co |
| (815)418- | Landline | First Communications |
| (815)419- | Landline | At&T |
| (815)420- | Landline | Onvoy |
| (815)421- | Landline | Illinois Bell Tel Co |
| (815)422- | Landline | Illinois Bell Tel Co |
| (815)423- | Landline | Illinois Bell Tel Co |
| (815)424- | Landline | Illinois Bell Tel Co |
| (815)425- | Landline | Level 3 Communications |
| (815)426- | Landline | Illinois Bell Tel Co |
| (815)427- | Landline | Illinois Bell Tel Co |
| (815)428- | Landline | Frontier North |
| (815)429- | Landline | Frontier North |
| (815)430- | Landline | First Communications |
| (815)431- | Landline | Illinois Bell Tel Co |
| (815)432- | Landline | Illinois Bell Tel Co |
| (815)433- | Landline | Illinois Bell Tel Co |
| (815)434- | Landline | Illinois Bell Tel Co |
| (815)435- | Landline | Frontier North |
| (815)436- | Landline | Illinois Bell Tel Co |
| (815)437- | Landline | Frontier North |
| (815)438- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)439- | Landline | Illinois Bell Tel Co |
| (815)440- | Wireless | Verizon Wireless |
| (815)441- | Wireless | Verizon Wireless |
| (815)442- | Landline | Tonica Tel. Co. |
| (815)443- | Landline | Frontier North |
| (815)444- | Landline | Illinois Bell Tel Co |
| (815)445- | Landline | Frontier North |
| (815)446- | Landline | Frontier North |
| (815)447- | Landline | Frontier Communications Of Depue |
| (815)448- | Landline | Illinois Bell Tel Co |
| (815)449- | Landline | Frontier North |
| (815)450- | Wireless | New Cingular Wireless Pcs |
| (815)451- | Wireless | New Cingular Wireless Pcs |
| (815)452- | Landline | Frontier North |
| (815)453- | Landline | Frontier North |
| (815)454- | Landline | Frontier North |
| (815)455- | Landline | Illinois Bell Tel Co |
| (815)456- | Landline | Frontier North |
| (815)457- | Landline | Frontier Communications Of The Carolinas |
| (815)458- | Landline | Illinois Bell Tel Co |
| (815)459- | Landline | Illinois Bell Tel Co |
| (815)460- | Landline | First Communications |
| (815)461- | Landline | Xo Illinois |
| (815)462- | Landline | Illinois Bell Tel Co |
| (815)463- | Landline | Illinois Bell Tel Co |
| (815)464- | Landline | Illinois Bell Tel Co |
| (815)465- | Landline | Illinois Bell Tel Co |
| (815)466- | Landline | Illinois Bell Tel Co |
| (815)467- | Landline | Illinois Bell Tel Co |
| (815)468- | Landline | Illinois Bell Tel Co |
| (815)469- | Landline | Illinois Bell Tel Co |
| (815)470- | Landline | Illinois Bell Tel Co |
| (815)471- | Wireless | Illinois Valley Cellular Rsa 2-I Partnership |
| (815)472- | Landline | Illinois Bell Tel Co |
| (815)473- | Landline | Frontier Communications Of The Carolinas |
| (815)474- | Wireless | New Cingular Wireless Pcs |
| (815)475- | Landline | Illinois Bell Tel Co |
| (815)476- | Landline | Illinois Bell Tel Co |
| (815)477- | Landline | Illinois Bell Tel Co |
| (815)478- | Landline | Illinois Bell Tel Co |
| (815)479- | Landline | Illinois Bell Tel Co |
| (815)480- | Wireless | Usa Mobility Wireless |
| (815)481- | Wireless | Illinois Valley Cellular Rsa 2-I Partnership |
| (815)482- | Wireless | Sprint Spectrum |
| (815)483- | Wireless | Sprint Spectrum |
| (815)484- | Landline | Illinois Bell Tel Co |
| (815)485- | Landline | Illinois Bell Tel Co |
| (815)486- | Landline | Frontier North |
| (815)487- | Landline | First Communications |
| (815)488- | Wireless | Illinois Valley Cellular Rsa 2-I Partnership |
| (815)489- | Landline | Illinois Bell Tel Co |
| (815)490- | Landline | Illinois Bell Tel Co |
| (815)491- | Landline | Nuso |
| (815)492- | Landline | Frontier North |
| (815)493- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)494- | Wireless | United States Cellular |
| (815)495- | Landline | Frontier North |
| (815)496- | Landline | Frontier North |
| (815)497- | Landline | Frontier North |
| (815)498- | Landline | Frontier North |
| (815)499- | Wireless | United States Cellular |
| (815)500- | Landline | Mediacom Telephony Of Illinois |
| (815)501- | Wireless | Sprint Spectrum |
| (815)502- | Landline | First Communications |
| (815)503- | Wireless | Sprint Spectrum |
| (815)504- | Landline | First Communications |
| (815)505- | Wireless | T-Mobile Usa |
| (815)506- | Landline | Level 3 Communications |
| (815)507- | Landline | Level 3 Communications |
| (815)508- | Wireless | New Cingular Wireless Pcs |
| (815)509- | Wireless | Sprint Spectrum |
| (815)510- | Landline | Mediacom Telephony Of Illinois |
| (815)512- | Landline | First Communications |
| (815)513- | Landline | Level 3 Communications |
| (815)514- | Wireless | Sprint Spectrum |
| (815)515- | Landline | Level 3 Communications |
| (815)516- | Wireless | Sprint Spectrum |
| (815)517- | Landline | Mcimetro Access Transmission Services |
| (815)518- | Landline | First Communications |
| (815)519- | Wireless | Sprint Spectrum |
| (815)520- | Wireless | Verizon Wireless |
| (815)521- | Landline | Illinois Bell Tel Co |
| (815)522- | Landline | Frontier North |
| (815)523- | Landline | Teleport Communications America |
| (815)524- | Landline | Teleport Communications America |
| (815)525- | Landline | Tds Metrocom |
| (815)526- | Landline | Teleport Communications America |
| (815)527- | Landline | Teleport Communications America |
| (815)528- | Landline | Teleport Communications America |
| (815)529- | Wireless | Verizon Wireless |
| (815)530- | Wireless | Sprint Spectrum |
| (815)531- | Landline | Teleport Communications America |
| (815)532- | Wireless | Usa Mobility Wireless |
| (815)533- | Wireless | Indiana Paging Network |
| (815)534- | Landline | Level 3 Communications |
| (815)535- | Landline | Illinois Bell Tel Co |
| (815)536- | Wireless | Usa Mobility Wireless |
| (815)537- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)538- | Landline | Frontier North |
| (815)539- | Landline | Frontier North |
| (815)540- | Wireless | Sprint Spectrum |
| (815)541- | Wireless | United States Cellular |
| (815)542- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)543- | Wireless | United States Cellular |
| (815)544- | Landline | Frontier North |
| (815)545- | Wireless | New Cingular Wireless Pcs |
| (815)546- | Wireless | New Cingular Wireless Pcs |
| (815)547- | Landline | Frontier North |
| (815)548- | Landline | Illinois Bell Tel Co |
| (815)549- | Wireless | Sprint Spectrum |
| (815)550- | Landline | Level 3 Communications |
| (815)551- | Landline | Onvoy |
| (815)552- | Landline | Illinois Bell Tel Co |
| (815)553- | Landline | Ovation Communications Of Illinois |
| (815)554- | Landline | Mediacom Telephony Of Illinois |
| (815)556- | Landline | Level 3 Communications |
| (815)557- | Wireless | Sprint Spectrum |
| (815)558- | Wireless | United States Cellular |
| (815)559- | Landline | Voip Innovations |
| (815)560- | Wireless | Sprint Spectrum |
| (815)561- | Landline | Frontier North |
| (815)562- | Landline | Frontier North |
| (815)563- | Landline | Frontier North |
| (815)564- | Landline | Illinois Bell Tel Co |
| (815)565- | Landline | Mediacom Telephony Of Illinois |
| (815)566- | Landline | Level 3 Communications |
| (815)567- | Landline | Frontier North |
| (815)568- | Landline | Illinois Bell Tel Co |
| (815)569- | Landline | Frontier North |
| (815)570- | Landline | Level 3 Communications |
| (815)571- | Landline | Mediacom Telephony Of Illinois |
| (815)572- | Landline | Level 3 Communications |
| (815)573- | Landline | Level 3 Communications |
| (815)574- | Landline | Aero North Communications |
| (815)575- | Wireless | New Cingular Wireless Pcs |
| (815)576- | Landline | Aero North Communications |
| (815)577- | Landline | Illinois Bell Tel Co |
| (815)578- | Landline | Illinois Bell Tel Co |
| (815)579- | Wireless | Sprint Spectrum |
| (815)580- | Landline | At&T |
| (815)581- | Landline | Comcast Ip Phone |
| (815)582- | Wireless | T-Mobile Usa |
| (815)583- | Landline | Aero North Communications |
| (815)584- | Landline | Illinois Bell Tel Co |
| (815)585- | Landline | Level 3 Communications |
| (815)586- | Landline | C-R Telephone Co. |
| (815)587- | Landline | Level 3 Communications |
| (815)588- | Landline | Illinois Bell Tel Co |
| (815)589- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)590- | Wireless | T-Mobile Usa |
| (815)591- | Landline | Frontier North |
| (815)592- | Wireless | Verizon Wireless |
| (815)593- | Landline | At&T |
| (815)594- | Landline | Frontier North |
| (815)595- | Landline | At&T |
| (815)596- | Landline | At&T |
| (815)597- | Landline | Frontier North |
| (815)598- | Landline | Frontier North |
| (815)599- | Landline | Frontier North |
| (815)600- | Wireless | New Cingular Wireless Pcs |
| (815)601- | Wireless | United States Cellular |
| (815)602- | Landline | First Communications |
| (815)603- | Wireless | T-Mobile Usa |
| (815)604- | Landline | Onvoy |
| (815)605- | Landline | Level 3 Communications |
| (815)606- | Landline | First Communications |
| (815)607- | Landline | Itv-3, Llc D/B/A I3 Broadband |
| (815)608- | Wireless | T-Mobile Usa |
| (815)609- | Landline | Illinois Bell Tel Co |
| (815)610- | Landline | Itv-3, Llc D/B/A I3 Broadband |
| (815)612- | Landline | Itv-3, Llc D/B/A I3 Broadband |
| (815)613- | Wireless | New Cingular Wireless Pcs |
| (815)614- | Landline | Illinois Bell Tel Co |
| (815)615- | Landline | Level 3 Communications |
| (815)616- | Wireless | T-Mobile Usa |
| (815)617- | Landline | At&T |
| (815)618- | Wireless | New Cingular Wireless Pcs |
| (815)619- | Landline | Aero North Communications |
| (815)620- | Landline | Peerless Network Of Illinois |
| (815)621- | Wireless | Sprint Spectrum |
| (815)622- | Landline | Illinois Bell Tel Co |
| (815)623- | Landline | Frontier North |
| (815)624- | Landline | Frontier North |
| (815)625- | Landline | Illinois Bell Tel Co |
| (815)626- | Landline | Illinois Bell Tel Co |
| (815)627- | Landline | Frontier North |
| (815)628- | Landline | Frontier North |
| (815)629- | Landline | Frontier North |
| (815)630- | Wireless | T-Mobile Usa |
| (815)631- | Landline | Illinois Bell Tel Co |
| (815)632- | Landline | Illinois Bell Tel Co |
| (815)633- | Landline | Illinois Bell Tel Co |
| (815)634- | Landline | Illinois Bell Tel Co |
| (815)635- | Landline | Frontier North |
| (815)636- | Landline | Illinois Bell Tel Co |
| (815)637- | Landline | Illinois Bell Tel Co |
| (815)638- | Landline | Frontier North |
| (815)639- | Landline | Illinois Bell Tel Co |
| (815)640- | Landline | Teleport Communications America |
| (815)641- | Wireless | Verizon Wireless |
| (815)642- | Landline | Level 3 Communications |
| (815)643- | Landline | Frontier North |
| (815)644- | Landline | Rcn Telecom Services Of Illinios |
| (815)645- | Landline | Frontier North |
| (815)646- | Landline | Frontier North |
| (815)647- | Landline | Mediacom Telephony Of Illinois |
| (815)648- | Landline | Frontier North |
| (815)649- | Landline | Rcn Telecom Services Of Illinios |
| (815)650- | Landline | At&T |
| (815)651- | Landline | Rcn Telecom Services Of Illinios |
| (815)652- | Landline | Centurylink |
| (815)653- | Landline | Frontier North |
| (815)654- | Landline | Illinois Bell Tel Co |
| (815)655- | Landline | Teleport Communications America |
| (815)656- | Landline | Level 3 Communications |
| (815)657- | Landline | Illinois Bell Tel Co |
| (815)658- | Landline | Teleport Communications America |
| (815)659- | Landline | Frontier North |
| (815)660- | Landline | Rcn Telecom Services Of Illinios |
| (815)661- | Landline | Rcn Telecom Services Of Illinios |
| (815)662- | Landline | Level 3 Communications |
| (815)663- | Landline | Frontier North |
| (815)664- | Landline | Frontier North |
| (815)665- | Landline | Rcn Telecom Services Of Illinios |
| (815)666- | Wireless | Verizon Wireless |
| (815)667- | Landline | Illinois Bell Tel Co |
| (815)668- | Landline | Onvoy |
| (815)669- | Landline | Level 3 Communications |
| (815)670- | Wireless | Sprint Spectrum |
| (815)671- | Landline | Level 3 Communications |
| (815)672- | Landline | Frontier North |
| (815)673- | Landline | Frontier North |
| (815)674- | Wireless | New Cingular Wireless Pcs |
| (815)675- | Landline | Frontier North |
| (815)676- | Landline | Level 3 Communications |
| (815)677- | Wireless | Verizon Wireless |
| (815)678- | Landline | Frontier North |
| (815)679- | Landline | Rcn Telecom Services Of Illinios |
| (815)680- | Landline | Rcn Telecom Services Of Illinios |
| (815)681- | Wireless | Verizon Wireless |
| (815)682- | Landline | Frontier Communications Of The Carolinas |
| (815)683- | Landline | Illinois Bell Tel Co |
| (815)684- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)685- | Wireless | New Cingular Wireless Pcs |
| (815)686- | Landline | Frontier North |
| (815)687- | Landline | Rcn Telecom Services Of Illinios |
| (815)688- | Landline | Frontier North |
| (815)689- | Landline | Frontier Communications Of Illinois |
| (815)690- | Wireless | Sprint Spectrum |
| (815)691- | Landline | Rcn Telecom Services Of Illinios |
| (815)692- | Landline | Frontier North |
| (815)693- | Wireless | Sprint Spectrum |
| (815)694- | Landline | Frontier North |
| (815)695- | Landline | Illinois Bell Tel Co |
| (815)696- | Landline | Aero North Communications |
| (815)697- | Landline | Frontier North |
| (815)698- | Landline | Frontier North |
| (815)699- | Landline | Frontier North |
| (815)701- | Landline | Level 3 Communications |
| (815)702- | Landline | Centurylink Communications |
| (815)703- | Wireless | Sprint Spectrum |
| (815)704- | Landline | Mcleodusa Telecommunication Services |
| (815)705- | Landline | Teleport Communications America |
| (815)706- | Landline | Exiant Communications |
| (815)707- | Landline | Level 3 Communications |
| (815)708- | Landline | Comcast Ip Phone |
| (815)709- | Landline | Level 3 Communications |
| (815)710- | Landline | At&T |
| (815)712- | Wireless | Sprint Spectrum |
| (815)713- | Wireless | New Cingular Wireless Pcs |
| (815)714- | Landline | Bandwidth.Com Clec |
| (815)715- | Wireless | New Cingular Wireless Pcs |
| (815)716- | Landline | Metropcs |
| (815)717- | Landline | First Communications |
| (815)718- | Wireless | United States Cellular |
| (815)719- | Wireless | Sprint Spectrum |
| (815)720- | Landline | Illinois Bell Tel Co |
| (815)721- | Landline | At&T |
| (815)722- | Landline | Illinois Bell Tel Co |
| (815)723- | Landline | Illinois Bell Tel Co |
| (815)724- | Landline | Illinois Bell Tel Co |
| (815)725- | Landline | Illinois Bell Tel Co |
| (815)726- | Landline | Illinois Bell Tel Co |
| (815)727- | Landline | Illinois Bell Tel Co |
| (815)728- | Landline | Frontier North |
| (815)729- | Landline | Illinois Bell Tel Co |
| (815)730- | Landline | Illinois Bell Tel Co |
| (815)731- | Landline | Illinois Bell Tel Co |
| (815)732- | Landline | Frontier North |
| (815)733- | Landline | Rcn Telecom Services Of Illinios |
| (815)734- | Landline | Frontier North |
| (815)735- | Wireless | New Cingular Wireless Pcs |
| (815)736- | Landline | Illinois Bell Tel Co |
| (815)737- | Landline | Sharon Tel. Co. |
| (815)738- | Landline | Leaf River Telephone Co. |
| (815)739- | Wireless | Sprint Spectrum |
| (815)740- | Landline | Illinois Bell Tel Co |
| (815)741- | Landline | Illinois Bell Tel Co |
| (815)742- | Wireless | United States Cellular |
| (815)743- | Landline | Frontier Communications-Prairie |
| (815)744- | Landline | Illinois Bell Tel Co |
| (815)745- | Landline | Frontier North |
| (815)746- | Landline | Marseilles Tel. Co. Of Marseilles |
| (815)747- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)748- | Landline | Frontier North |
| (815)749- | Landline | Bandwidth.Com Clec |
| (815)750- | Landline | Mtco Communications |
| (815)751- | Wireless | Verizon Wireless |
| (815)752- | Landline | Frontier North |
| (815)753- | Landline | Frontier North |
| (815)754- | Landline | Frontier North |
| (815)755- | Landline | Onvoy |
| (815)756- | Landline | Frontier North |
| (815)757- | Wireless | United States Cellular |
| (815)758- | Landline | Frontier North |
| (815)759- | Landline | Illinois Bell Tel Co |
| (815)760- | Wireless | Verizon Wireless |
| (815)761- | Wireless | Verizon Wireless |
| (815)762- | Wireless | Verizon Wireless |
| (815)763- | Wireless | Verizon Wireless |
| (815)764- | Wireless | United States Cellular |
| (815)765- | Landline | Frontier North |
| (815)766- | Wireless | United States Cellular |
| (815)767- | Landline | American Messaging Services |
| (815)768- | Landline | Illinois Bell Tel Co |
| (815)769- | Landline | Level 3 Communications |
| (815)770- | Landline | Charter Fiberlink - Illinois |
| (815)771- | Landline | Rcn Telecom Services Of Illinios |
| (815)772- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)773- | Landline | Illinois Bell Tel Co |
| (815)774- | Landline | Illinois Bell Tel Co |
| (815)775- | Wireless | Usa Mobility Wireless |
| (815)776- | Landline | Illinois Bell Tel Co |
| (815)777- | Landline | Illinois Bell Tel Co |
| (815)778- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)780- | Landline | Level 3 Communications |
| (815)781- | Landline | Rcn Telecom Services Of Illinios |
| (815)782- | Landline | Level 3 Communications |
| (815)783- | Landline | Rcn Telecom Services Of Illinios |
| (815)784- | Landline | Frontier North |
| (815)785- | Landline | Rcn Telecom Services Of Illinios |
| (815)786- | Landline | Frontier North |
| (815)787- | Landline | Frontier North |
| (815)788- | Landline | Illinois Bell Tel Co |
| (815)789- | Landline | Frontier North |
| (815)790- | Wireless | Sprint Spectrum |
| (815)791- | Wireless | Sprint Spectrum |
| (815)792- | Landline | Illinois Bell Tel Co |
| (815)793- | Wireless | T-Mobile Usa |
| (815)794- | Landline | Marseilles Tel. Co. Of Marseilles |
| (815)795- | Landline | Marseilles Tel. Co. Of Marseilles |
| (815)796- | Landline | Frontier Communications-Prairie |
| (815)797- | Landline | Level 3 Communications |
| (815)798- | Landline | Aero North Communications |
| (815)799- | Landline | Level 3 Communications |
| (815)800- | Landline | Mediacom Telephony Of Illinois |
| (815)801- | Landline | Aero North Communications |
| (815)802- | Landline | Illinois Bell Tel Co |
| (815)803- | Landline | Aero North Communications |
| (815)804- | Landline | Aero North Communications |
| (815)805- | Landline | Aero North Communications |
| (815)806- | Landline | Illinois Bell Tel Co |
| (815)807- | Landline | Aero North Communications |
| (815)808- | Landline | Aero North Communications |
| (815)809- | Landline | Aero North Communications |
| (815)810- | Landline | Aero North Communications |
| (815)812- | Landline | Aero North Communications |
| (815)813- | Landline | Aero North Communications |
| (815)814- | Wireless | T-Mobile Usa |
| (815)816- | Landline | Aero North Communications |
| (815)817- | Landline | Aero North Communications |
| (815)818- | Landline | Aero North Communications |
| (815)819- | Landline | Aero North Communications |
| (815)820- | Landline | Aero North Communications |
| (815)821- | Wireless | United States Cellular |
| (815)822- | Wireless | New Cingular Wireless Pcs |
| (815)823- | Landline | Xo Illinois |
| (815)824- | Landline | Frontier North |
| (815)825- | Landline | Frontier North |
| (815)826- | Wireless | Verizon Wireless |
| (815)827- | Landline | Frontier North |
| (815)828- | Landline | Xo Illinois |
| (815)829- | Landline | Aero North Communications |
| (815)830- | Wireless | New Cingular Wireless Pcs |
| (815)831- | Landline | Aero North Communications |
| (815)832- | Landline | Frontier Communications Of Illinois |
| (815)833- | Landline | Aero North Communications |
| (815)834- | Landline | Illinois Bell Tel Co |
| (815)835- | Landline | Aero North Communications |
| (815)836- | Landline | Illinois Bell Tel Co |
| (815)837- | Landline | Aero North Communications |
| (815)838- | Landline | Illinois Bell Tel Co |
| (815)839- | Landline | Xo Illinois |
| (815)840- | Landline | Aero North Communications |
| (815)841- | Landline | Aero North Communications |
| (815)842- | Landline | Frontier North |
| (815)843- | Landline | Aero North Communications |
| (815)844- | Landline | Frontier North |
| (815)845- | Landline | Frontier North |
| (815)846- | Landline | Level 3 Communications |
| (815)847- | Landline | At&T |
| (815)848- | Wireless | Illinois Valley Cellular Rsa 2-I Partnership |
| (815)849- | Landline | Frontier North |
| (815)850- | Landline | Aero North Communications |
| (815)851- | Wireless | Usa Mobility Wireless |
| (815)852- | Landline | Aero North Communications |
| (815)853- | Landline | Frontier North |
| (815)854- | Landline | Frontier North |
| (815)855- | Landline | Mediacom Telephony Of Illinois |
| (815)856- | Landline | Leonore Mutual Tel. Co. |
| (815)857- | Landline | Frontier North |
| (815)858- | Landline | Frontier North |
| (815)859- | Landline | Vonage America |
| (815)860- | Landline | Teleport Communications America |
| (815)861- | Wireless | New Cingular Wireless Pcs |
| (815)862- | Landline | Charter Fiberlink - Illinois |
| (815)863- | Landline | Frontier North |
| (815)864- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)865- | Landline | Frontier North |
| (815)866- | Wireless | Illinois Valley Cellular Rsa 2-I Partnership |
| (815)867- | Wireless | Sprint Spectrum |
| (815)868- | Landline | Frontier North |
| (815)869- | Landline | Frontier North |
| (815)870- | Wireless | Usa Mobility Wireless |
| (815)871- | Wireless | United States Cellular |
| (815)872- | Landline | Frontier North |
| (815)873- | Landline | Frontier North |
| (815)874- | Landline | Frontier North |
| (815)875- | Landline | Frontier North |
| (815)876- | Landline | Frontier North |
| (815)877- | Landline | Illinois Bell Tel Co |
| (815)878- | Wireless | New Cingular Wireless Pcs |
| (815)879- | Landline | Frontier North |
| (815)880- | Landline | Xo Illinois |
| (815)881- | Landline | Level 3 Communications |
| (815)882- | Landline | Mcnabb Tel. Co. |
| (815)883- | Landline | Illinois Bell Tel Co |
| (815)884- | Landline | Mediacom Telephony Of Illinois |
| (815)885- | Landline | Frontier North |
| (815)886- | Landline | Illinois Bell Tel Co |
| (815)887- | Landline | Teleport Communications America |
| (815)888- | Landline | Level 3 Communications |
| (815)889- | Landline | Frontier Communications Of The Carolinas |
| (815)890- | Landline | Aero North Communications |
| (815)891- | Landline | Aero North Communications |
| (815)892- | Landline | Teleport Communications America |
| (815)893- | Landline | Comcast Ip Phone |
| (815)894- | Landline | Frontier North |
| (815)895- | Landline | Frontier North |
| (815)896- | Landline | Aero North Communications |
| (815)897- | Landline | Mediacom Telephony Of Illinois |
| (815)898- | Landline | Aero North Communications |
| (815)899- | Landline | Frontier North |
| (815)900- | Wireless | New Cingular Wireless Pcs |
| (815)901- | Landline | Comcast Ip Phone |
| (815)902- | Landline | Mediacom Telephony Of Illinois |
| (815)903- | Landline | American Messaging Services |
| (815)904- | Wireless | New Cingular Wireless Pcs |
| (815)905- | Landline | Level 3 Communications |
| (815)906- | Landline | Mediacom Telephony Of Illinois |
| (815)907- | Landline | Level 3 Communications |
| (815)908- | Wireless | Verizon Wireless |
| (815)909- | Wireless | T-Mobile Usa |
| (815)910- | Wireless | Illinois Valley Cellular Rsa 2-I Partnership |
| (815)912- | Landline | Aero North Communications |
| (815)913- | Landline | Centurylink Communications |
| (815)914- | Wireless | Sprint Spectrum |
| (815)915- | Landline | Level 3 Communications |
| (815)916- | Landline | Onvoy |
| (815)917- | Landline | Aero North Communications |
| (815)918- | Landline | Level 3 Communications |
| (815)919- | Wireless | T-Mobile Usa |
| (815)920- | Landline | Mediacom Telephony Of Illinois |
| (815)921- | Landline | Illinois Bell Tel Co |
| (815)922- | Wireless | Verizon Wireless |
| (815)923- | Landline | Illinois Bell Tel Co |
| (815)924- | Landline | Aero North Communications |
| (815)925- | Landline | Frontier North |
| (815)926- | Landline | Level 3 Communications |
| (815)927- | Landline | Level 3 Communications |
| (815)928- | Landline | Illinois Bell Tel Co |
| (815)929- | Landline | Illinois Bell Tel Co |
| (815)930- | Landline | Mediacom Telephony Of Illinois |
| (815)931- | Wireless | New Cingular Wireless Pcs |
| (815)932- | Landline | Illinois Bell Tel Co |
| (815)933- | Landline | Illinois Bell Tel Co |
| (815)934- | Landline | Frontier North |
| (815)935- | Landline | Illinois Bell Tel Co |
| (815)936- | Landline | Illinois Bell Tel Co |
| (815)937- | Landline | Illinois Bell Tel Co |
| (815)938- | Landline | Frontier North |
| (815)939- | Landline | Illinois Bell Tel Co |
| (815)940- | Landline | Level 3 Communications |
| (815)941- | Landline | Illinois Bell Tel Co |
| (815)942- | Landline | Illinois Bell Tel Co |
| (815)943- | Landline | Illinois Bell Tel Co |
| (815)944- | Landline | Illinois Bell Tel Co |
| (815)945- | Landline | Frontier North |
| (815)946- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)947- | Landline | Frontier North |
| (815)948- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)949- | Landline | Frontier North |
| (815)951- | Landline | Aero North Communications |
| (815)952- | Landline | Aero North Communications |
| (815)953- | Wireless | Verizon Wireless |
| (815)954- | Wireless | Verizon Wireless |
| (815)955- | Wireless | Sprint Spectrum |
| (815)956- | Landline | Citizens Telecom Co Illinois-Frontier Citizens |
| (815)957- | Landline | Level 3 Communications |
| (815)960- | Landline | North County Communication |
| (815)961- | Landline | Illinois Bell Tel Co |
| (815)962- | Landline | Illinois Bell Tel Co |
| (815)963- | Landline | Illinois Bell Tel Co |
| (815)964- | Landline | Illinois Bell Tel Co |
| (815)965- | Landline | Illinois Bell Tel Co |
| (815)966- | Landline | Illinois Bell Tel Co |
| (815)967- | Landline | Illinois Bell Tel Co |
| (815)968- | Landline | Illinois Bell Tel Co |
| (815)969- | Landline | Illinois Bell Tel Co |
| (815)970- | Wireless | Sprint Spectrum |
| (815)971- | Landline | Illinois Bell Tel Co |
| (815)972- | Landline | Illinois Bell Tel Co |
| (815)973- | Wireless | United States Cellular |
| (815)974- | Landline | Onvoy |
| (815)975- | Wireless | New Cingular Wireless Pcs |
| (815)977- | Landline | Mcimetro Access Transmission Services |
| (815)978- | Wireless | Verizon Wireless |
| (815)979- | Wireless | Verizon Wireless |
| (815)980- | Wireless | Verizon Wireless |
| (815)981- | Landline | Level 3 Communications |
| (815)982- | Landline | Mediacom Telephony Of Illinois |
| (815)983- | Landline | American Messaging Services |
| (815)984- | Landline | Frontier Communications Of The Carolinas |
| (815)985- | Wireless | Verizon Wireless |
| (815)986- | Landline | Choice One Comm Il |
| (815)987- | Landline | Illinois Bell Tel Co |
| (815)988- | Wireless | United States Cellular |
| (815)989- | Landline | Mediacom Telephony Of Illinois |
| (815)990- | Wireless | Verizon Wireless |
| (815)991- | Wireless | New Cingular Wireless Pcs |
| (815)992- | Wireless | Sprint Spectrum |
| (815)993- | Wireless | New Cingular Wireless Pcs |
| (815)994- | Landline | Metropcs |
| (815)995- | Landline | Teleport Communications America |
| (815)996- | Landline | Centurylink Communications |
| (815)997- | Landline | Mcleodusa Telecommunication Services |
| (815)998- | Landline | Frontier North |
| (815)999- | Wireless | Sprint Spectrum |
| No prefixes match “”. | ||
Frequently Asked Questions about the 815 Area Code
Who called me from a 815 number?
22% of its assigned prefixes are wireless. Largest holders: Illinois Bell Tel Co, Frontier North, and Level 3 Communications.
Is 815 a scam area code?
Carriers hold 78% of its possible prefixes.
Why do I keep getting calls from the 815 area code?
Complaints fell 4% on the prior period.
Should I answer an unknown 815 number?
56% of its FTC complaints were robocalls. Its most-reported specific subject was "Reducing your debt (credit cards, mortgage, student loans)", at 24%.
How do I block calls from the 815 area code?
Blocking 815 still lets 779 numbers through.
Where is area code 815?
815 covers 275 cities and 1,697,555 residents in 23 Illinois counties, led by Will, Winnebago, and McHenry.
When did area code 815 go into service?
815 went into service in 1947. 779 now shares its territory.
Is 815 a real area code?
Yes: 59 carriers hold its prefixes, serving 275 cities in Will, Winnebago, McHenry, and 20 other counties.
What timezone is the 815 area code in?
815 is on Central Time (CT).
How do I call a 815 number from abroad?
Dial +1 815, then the number.