RIO GRANDE — PR
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| METROPCS, INC. | 5562 | 4 |
| PUERTO RICO TEL. CO. | 3201 | 3 |
| OPTIVON TELECOMMUNICATIONS SERVICES, INC. - PR | 087D | 1 |
| NEUTRAL TANDEM - PR | 559F | 1 |
| LIBERTY MOBILE PUERTO RICO INC. | 8305 | 1 |