MOUNTVILLE — PA
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | 1 |
| COMCAST IP PHONE, LLC | 318J | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | 1 |
| WINDSTREAM D & E SYSTEMS, INC. - PA | 4114 | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | 1 |