Phone numbers in Arroyo, Puerto Rico
Arroyo has 12 phone prefixes in area codes 787, 939.
Biggest holders: T-Mobile (including Sprint), Puerto Rico Tel, Optivon Telecommunications Services. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 67%
- Local phone company 17%
- Internet / business phone carrier 8%
- Phone company 8%
Every prefix in Arroyo
Search the first six digits of a number in this list. If it's here, the number started in Arroyo with the carrier shown. If it isn't, check the Puerto Rico page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 787-271 | Puerto Rico Tel | Local phone company | – |
| 787-341 | T-Mobile (including Sprint) | Mobile carrier | 2005 |
| 787-416 | Optivon Telecommunications Services | Phone company | – |
| 787-839 | Puerto Rico Tel | Local phone company | – |
| 787-929 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 939-294 | T-Mobile (including Sprint) | Mobile carrier | 2018 |
| 939-307 | Liberty Mobile Puerto Rico | Mobile carrier | 2001 |
| 939-335 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 939-370 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 939-693 | Onvoy | Internet / business phone carrier | 2023 |
| 939-729 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 939-732 | T-Mobile (including Sprint) | Mobile carrier | 2009 |
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.