MADISON — AL
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | 5 |
| PAETEC ITEL, LLC | 829J | 3 |
| ONVOY, LLC - AL | 604E | 2 |
| NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | 2 |
| CENTURYLINK COMMUNICATIONS LLC - AL | 7451 | 2 |