Phone numbers in Carolina, Puerto Rico
Carolina has 34 phone prefixes in area codes 787, 939.
Biggest holders: T-Mobile (including Sprint), Puerto Rico Tel, Liberty Mobile Puerto Rico. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 62%
- Local phone company 29%
- Internet / business phone carrier 3%
- Phone company 6%
Every prefix in Carolina
Search the first six digits of a number in this list. If it's here, the number started in Carolina with the carrier shown. If it isn't, check the Puerto Rico page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 787-220 | Liberty Mobile Puerto Rico | Mobile carrier | – |
| 787-257 | Puerto Rico Tel | Local phone company | – |
| 787-276 | Puerto Rico Tel | Local phone company | – |
| 787-418 | Optivon Telecommunications Services | Phone company | – |
| 787-463 | T-Mobile (including Sprint) | Mobile carrier | 2004 |
| 787-513 | T-Mobile (including Sprint) | Mobile carrier | 2008 |
| 787-690 | Liberty Mobile Puerto Rico | Mobile carrier | – |
| 787-701 | Puerto Rico Tel | Local phone company | – |
| 787-710 | Worldnet Telecommunications | Phone company | 2007 |
| 787-750 | Puerto Rico Tel | Local phone company | – |
| 787-752 | Puerto Rico Tel | Local phone company | – |
| 787-757 | Puerto Rico Tel | Local phone company | – |
| 787-762 | Puerto Rico Tel | Local phone company | – |
| 787-768 | Puerto Rico Tel | Local phone company | – |
| 787-769 | Puerto Rico Tel | Local phone company | – |
| 787-776 | Puerto Rico Tel | Local phone company | – |
| 787-980 | Liberty Mobile Puerto Rico | Mobile carrier | 2011 |
| 787-990 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 939-216 | T-Mobile (including Sprint) | Mobile carrier | 2009 |
| 939-223 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 939-317 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 939-326 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 939-342 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 939-351 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 939-371 | MetroPCS (T-Mobile) | Mobile carrier | 2021 |
| 939-396 | MetroPCS (T-Mobile) | Mobile carrier | 2024 |
| 939-408 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 939-489 | Liberty Mobile Puerto Rico | Mobile carrier | – |
| 939-539 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 939-633 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 939-652 | T-Mobile (including Sprint) | Mobile carrier | 2018 |
| 939-655 | Liberty Mobile Puerto Rico | Mobile carrier | – |
| 939-793 | Onvoy | Internet / business phone carrier | 2023 |
| 939-845 | T-Mobile (including Sprint) | Mobile carrier | 2018 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.