251 Area CodeMobile, AL
Area code 251 covers Mobile and nearby communities in Alabama, in the Central Time (CT) zone, home to about 485,000 people across 77 cities. It overlays 334, so the same region uses both and every local call needs all ten digits.
Overview
- Major City
- Mobile
- State
- Alabama (AL)
- Timezone
- Central Time (CT)
- Current Time
- Overlay
- Yes – shares area with 334
Where is area code 251?
Area code 251 serves part of Mobile, AL and the surrounding areas. It has a single overlay (334) that serves the same area.
Overview of the 251 Area Code
What is the 251 area code?
The 251 area code serves Mobile, Alabama, alongside other established area codes. When you see a 251 number, it indicates a local number within this geographic area.
Why was area code 251 created?
The 251 area code was introduced as an overlay to add numbers in Mobile once the existing area code 334 began to run out of available prefixes. It added a new supply of numbers without requiring current residents to change their existing digits.
Geographic Coverage of the 251 Area Code
The 251 area code serves Mobile and surrounding areas in Alabama. It operates within the Central Time (CT) time zone. It complements the coverage of area code 334. This area code covers several key cities, including:
- Mobile
- Daphne
- Foley
- Fairhope
- Prichard
- Gulf Shores
Got a call from a 251 number? It came from Mobile, AL. Since 251 overlays with 334, every local call in the region needs all ten digits to land on the right line. Inside 251, Mobile holds about 41% of the population; the rest is split across 76 smaller cities.
Mobile Area Codes Overview
Mobile is served by multiple area codes, reflecting its telecommunications needs. The 251 area code operates alongside 334. Here are the area codes serving this region:
The introduction of the 251 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 251 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| Mobile | AL | 201,367 | 2% | 100% |
| Daphne | AL | 30,751 | 0% | 100% |
| Foley | AL | 28,043 | 0% | 100% |
| Fairhope | AL | 26,044 | 0% | 100% |
| Prichard | AL | 18,778 | 0% | 100% |
| Gulf Shores | AL | 17,431 | 0% | 100% |
| Tillmans Corner | AL | 17,398 | 0% | 100% |
| Saraland | AL | 16,458 | 0% | 100% |
| Spanish Fort | AL | 11,118 | 0% | 100% |
| Orange Beach | AL | 8,599 | 0% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 251 been reported for unwanted calls?
Yes – 1,042 unwanted-call complaints were reported to the FTC for numbers showing a 251 area code (May 29 – Jul 2, 2026).
- 59% robocalls
- ↓ 9% vs prior period
Most-reported subjects
- Other44%461
- Reducing your debt (credit cards, mortgage, student loans)35%363
- Dropped call or no message5%54
* 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. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-07-05.
Which prefixes and exchanges belong to area code 251?
48% assigned to a telco
- 72% Landline
- 28% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (251)200- | Landline | Metropcs |
| (251)201- | Landline | Harbor Communications |
| (251)202- | Landline | Level 3 Communications |
| (251)206- | Landline | Deltacom |
| (251)207- | Wireless | New Cingular Wireless Pcs |
| (251)208- | Landline | South Central Bell Tel |
| (251)209- | Wireless | Eliska Wireless Ventures Subsidiary I |
| (251)210- | Landline | Deltacom |
| (251)212- | Landline | Deltacom |
| (251)213- | Wireless | New Cingular Wireless Pcs |
Frequently Asked Questions about the 251 Area Code
Who called me from a 251 number?
A 251 number is assigned to Mobile, Alabama, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 251 code to look nearby, so a 251 number doesn't prove the caller is local. Recently, 1,042 unwanted-call complaints were reported to the FTC for numbers showing the 251 code (59% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 251 a scam area code?
No area code is a scam on its own. 251 is a normal, officially assigned code for Mobile, Alabama. Spam callers spoof local codes to raise the odds you answer, so 251 on your caller ID says nothing about who is really calling. Recently, 1,042 unwanted-call complaints were reported to the FTC for numbers showing the 251 code (59% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 251 area code?
Repeated calls from different 251 numbers are usually spoofing: a robocaller rotates through 251 numbers so each call looks local and slips past simple blocks. Recently, 1,042 unwanted-call complaints were reported to the FTC for numbers showing the 251 code (59% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 251 number?
If you aren't expecting a 251 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 251 area code?
Block a single 251 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 251 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 251?
Area code 251 covers Mobile and the surrounding area in Alabama, spanning 77 cities with about 485,407 residents. It shares its area with overlay code 334.
Is 251 a real area code?
Yes. 251 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Mobile, Alabama. A real code can still show up on spoofed spam calls, so treat unknown 251 calls with normal caution.
What timezone is the 251 area code in?
The 251 area code is in the Central Time (CT). Because a number can be kept when someone moves or switches to VoIP, a specific 251 caller may not be in that zone.
How do I call a 251 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 251 and the seven-digit number. From a mobile phone you can usually just enter +1 251 followed by the number and let the phone add the exit code for you.