Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — AREA-CODE/939

939 area code

Area code 939 is in Puerto Rico. It covers Bayamon, Carolina, Ponce and 274 other places: 131 ZIP codes in Bayamón Municipio, Carolina Municipio, Ponce Municipio and 68 others. Local time there is , Atlantic Time. In service since 2001 as an overlay: it covers the same area as 787, so a number from there can have either code.

Time zone
Atlantic
Largest city
Adjuntas
Overlays
787
In service since
2001
Rate centres
75
Prefixes assigned
358 (3,580,000 numbers)

Who calls from a 939 number

NANPA records the carrier each block of 939 numbers is assigned to. Of the 3.1 million 939 numbers assigned, 59% are with mobile carriers (T-Mobile and Liberty Mobile Puerto Rico); 28% with local phone companies (Claro Puerto Rico); 13% with cable, internet-calling, business and other carriers (Liberty Communications Of Puerto Rico, Neutral Tandem and Onvoy).

That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.

Carriers holding the most 939 numbers
CarrierKindShare
T-MobileMobile39%
Claro Puerto RicoLandline28%
Liberty Mobile Puerto RicoMobile20%
Liberty Communications Of Puerto RicoCable, VoIP, other3%
Neutral TandemCable, VoIP, other3%
OnvoyCable, VoIP, other2%

An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.

Places in area code 939

The 65 places with a telephone rate centre of their own using 939, largest first. Each links to its ZIP codes.

Places in area code 939
PlaceZIP codesPopulation
Carolina, PR 9 138,633
Ponce, PR 8 107,805
Caguas, PR 3 72,922
Guaynabo, PR 6 70,599
Toa Baja, PR 3 66,256
Mayaguez, PR 3 58,977
Trujillo Alto, PR 2 43,611
Arecibo, PR 3 40,831
Moca, PR 1 36,972
Fajardo, PR 1 24,269
Vega Baja, PR 2 22,756
Guayama, PR 2 18,216
Humacao, PR 2 15,787
Cayey, PR 2 14,655
Yauco, PR 1 14,630
Canovanas, PR 1 12,689
Dorado, PR 1 12,425
Rio Grande, PR 1 12,375
Isabela, PR 1 11,048
Aguadilla, PR 3 11,033
Hormigueros, PR 1 10,975
San German, PR 1 10,747
Manati, PR 1 10,231
Coamo, PR 1 9,689
Juncos, PR 1 9,604
San Lorenzo, PR 1 9,453
Aibonito, PR 1 9,285
Cabo Rojo, PR 1 9,122
San Sebastian, PR 1 9,038
Vega Alta, PR 1 8,388
Arroyo, PR 1 7,516
Utuado, PR 1 7,432
Luquillo, PR 1 7,387
Gurabo, PR 1 6,440
Cidra, PR 1 5,819
Quebradillas, PR 1 5,731
Yabucoa, PR 1 5,557
Lares, PR 1 5,286
Penuelas, PR 1 5,208
Las Piedras, PR 1 5,198
Guanica, PR 1 5,136
Adjuntas, PR 1 4,664
Anasco, PR 1 4,616
Lajas, PR 1 4,285
Naguabo, PR 1 4,141
Salinas, PR 1 4,128
Comerio, PR 1 3,837
Aguada, PR 1 3,737
Florida, PR 1 3,498
Aguas Buenas, PR 1 3,488
Barceloneta, PR 1 3,396
Villalba, PR 1 3,279
Toa Alta, PR 2 3,259
Camuy, PR 1 3,242
Barranquitas, PR 1 2,981
Guayanilla, PR 1 2,820
Naranjito, PR 1 2,638
Ciales, PR 1 2,510
Morovis, PR 1 1,722
Las Marias, PR 1 1,688
Maunabo, PR 1 1,488
Orocovis, PR 1 1,299
Rincon, PR 1 906
Maricao, PR 1 826
Roosevelt Roads, PR 1 —

Nearby places using 939

These places have no rate centre of their own in NANPA's records; the nearest one uses 939. Near an area-code boundary that can be wrong for part of a town.

ZIP codes in area code 939

131 ZIP codes in 90 towns, by the town each is mailed to, largest first. Each links to its own page.

Where 939 numbers are issued

NANPA's rate centres with the most 939 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.

Rate centres using area code 939
Rate centrePlacePrefixes
BAYAMONNOR — 103
SANTURCE — 39
CAROLINA Carolina 16
PONCE Ponce 15
BAYAMONSUR — 12
AGUADILLA Aguadilla 11

Counties

The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.

Which code covers where you are now? What area code am I in? answers from your location.

Questions about area code 939

Where is area code 939?

Area code 939 is in Puerto Rico. It covers Bayamon, Carolina, Ponce and 274 other places: 131 ZIP codes in Bayamón Municipio, Carolina Municipio, Ponce Municipio and 68 others.

What ZIP codes are in area code 939?

131 ZIP codes, by the town each is mailed to: Bayamon (6, 00956 to 00961), Carolina (9, 00979 to 00988), Ponce (8, 00716 to 00734), Caguas (3, 00725 to 00727) and 86 more towns. The full list is on this page.

What time zone is area code 939 in?

Atlantic time.

Is a 939 number a mobile or a landline?

It can be either. 59% of 939 numbers are assigned to mobile carriers and 28% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.

What area codes overlay 939?

787. They cover the same area as 939, so a new number there can be given any of them.

Does a 939 number mean the caller is in Puerto Rico?

Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 939 call can come from anywhere.

Other area codes in Puerto Rico

Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.

Cite this page

zipcodes.pro. “Area code 939.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/939

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