Phone numbers in Guayama, Puerto Rico
Guayama has 6 phone prefixes in area codes 787, 939.
Biggest holders: Puerto Rico Tel, Claro Puerto Rico, Worldnet Telecommunications. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 17%
- Local phone company 50%
- Internet / business phone carrier 17%
- Phone company 17%
Every prefix in Guayama
Search the first six digits of a number in this list. If it's here, the number started in Guayama with the carrier shown. If it isn't, check the Puerto Rico page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 787-204 | Claro Puerto Rico | Local phone company | – |
| 787-592 | Worldnet Telecommunications | Phone company | 2007 |
| 787-686 | Liberty Mobile Puerto Rico | Mobile carrier | – |
| 787-864 | Puerto Rico Tel | Local phone company | – |
| 787-866 | Puerto Rico Tel | Local phone company | – |
| 939-309 | Onvoy | Internet / business phone carrier | 2007 |
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.