SO PITTSBG — TN
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BANDWIDTH.COM CLEC, LLC - TN | 124F | 2 |
| ONVOY, LLC - TN | 525E | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | 7278 | 1 |
| PAETEC ITEL, LLC | 829J | 1 |