HOLTVILLE — AL
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - AL | 5255 | 1 |
| METROPCS, INC. | 5562 | 1 |
| ONVOY, LLC - AL | 604E | 1 |
| NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - AL | 5255 | 1 |
| METROPCS, INC. | 5562 | 1 |
| ONVOY, LLC - AL | 604E | 1 |
| NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |