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Puerto Rico Area Codes

2 active area codes · San Juan

Puerto Rico has 2 active area codes, serving cities like San Juan, Bayamón, and Carolina. Of those, 2 are overlays covering ground another code already covers, which is why local calls there use all ten digits. The newest, 939, has been in service since September 15, 2001. Each code below links to its cities, carriers, timezone, and coverage map.

Puerto Rico Area Code Map

Map of Puerto Rico showing the area covered by its area codes

What area codes does Puerto Rico have?

More than one of these codes covers 78 of the 78 counties in Puerto Rico, and one county is covered by 2 of them. Each card counts the people inside that code's own boundary at the 2020 census. Adding all 2 gives 6,564,534, against the 3,285,874 the same census counts in those counties, because 3,278,660 residents fall inside more than one code.

Which cities are the largest in Puerto Rico?

#CityArea CodesPopulation
1San Juan787 / 939381,931
2Bayamón787 / 939185,996
3Carolina787 / 939157,832
4Ponce787 / 939132,502
5Caguas787 / 93982,243
6Guaynabo787 / 93975,443
7Mayagüez787 / 93970,463
8Trujillo Alto787 / 93948,437
9Arecibo787 / 93944,191
10Fajardo787 / 93928,930

How many phone prefixes does Puerto Rico use?

The area codes in Puerto Rico hold 1,090 assigned prefixes between them, listed under 23 distinct carrier names. A prefix is the three digits after the area code, and NANPA assigns each one to a single carrier.

Sources: City populations – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). State populations – the same program, Vintage 2025 (CO-EST2025-ALLDATA). Area-code footprint and county populations – 2020 Census Centers of Population, mapped against NANP area code boundaries. The share of each city inside a code is measured the same way, against Census place boundaries from the Census Bureau's TIGERweb service. Area code assignments – NANPA CO Code data. See our data methodology.

Frequently Asked Questions

How many area codes does Puerto Rico have?

Puerto Rico has 2 active area codes: 787, 939.

What is the main area code for Puerto Rico?

Of the 2 area codes in Puerto Rico, 787 is the oldest one still serving San Juan, its largest city. 787 has been in service since March 1, 1996.

What are the largest cities in Puerto Rico?

The largest cities in Puerto Rico include San Juan, Bayamón, Carolina, Ponce, Caguas.

Do I have to dial ten digits in Puerto Rico?

In the parts of Puerto Rico covered by an overlay, yes. 2 of the 2 area codes here cover ground another code already covers, and where two codes share an area, local calls need the area code as well as the seven-digit number.

Why does Puerto Rico have 2 area codes?

They arrived one at a time rather than all at once: 787 has been in service since March 1, 1996. 2 of the 2 are overlays, laid over a code that already covered the same ground instead of splitting its map in two. The most recent is 939, in service since September 15, 2001.

What is the newest area code in Puerto Rico?

939, in service since September 15, 2001.

Is my county covered by more than one area code in Puerto Rico?

It may be: more than one area code covers 78 of the 78 counties in Puerto Rico, and one county there is covered by 2 of them. The table above shows which codes reach each of the largest cities.