Local Calling Guide
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Switch: FRDRMDFR
| Switch (link to prefixes) | Switch name | Company |
|---|---|---|
| FRDRMDFR07T | FREDERICK | |
| FRDRMDFR6MD | ||
| FRDRMDFR9MD | ||
| FRDRMDFRAMD | ||
| FRDRMDFRCMD | ||
| FRDRMDFRDS0 | FREDERICK | 9212 VERIZON MARYLAND, INC. |
| FRDRMDFRDS1 | FREDERICK 2 | 9212 VERIZON MARYLAND, INC. |
| FRDRMDFRIMD | 551G NUSO, LLC | |
| FRDRMDFRKMD | 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | |
| FRDRMDFRKMD | 5562 METROPCS, INC. | |
| FRDRMDFRNMD | ||
| FRDRMDFRPMD | ||
| FRDRMDFRPS0 | FREDERICK | 2593 CORE COMMUNICATIONS, INC.- MD |
| FRDRMDFRPS0 | FREDERICK | 5833 CORETEL WEST VIRGINIA, INC. - WV |
| FRDRMDFRX2Y | 7421 AT&T - LOCAL | |
| FRDRMDFRX7X | 7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD | |
| FRDRMDFRX7X | 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC | |
| FRDRMDFRX9X | ||
| FRDRMDFRXAX | 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD | |
| FRDRMDFRXAX | 077G TELEPORT COMMUNICATIONS AMERICA, LLC - WV | |
| FRDRMDFRXGX | ||
| FRDRMDFRXHX | ||
| FRDRMDFRXKX | 508J CENTURYLINK COMMUNICATIONS, LLC | |
| FRDRMDFRXMD | 6119 LEVEL 3 COMMUNICATIONS, LLC - MD | |
| FRDRMDFRXMD | 9944 LEVEL 3 COMMUNICATIONS, LLC - WV | |
| FRDRMDFRXMD | 4007 LEVEL 3 COMMUNICATIONS, LLC - PA | |
| FRDRMDFRXOX | 073H TELNYX LLC | |
| FRDRMDFRXPX | 624H ONVOY SPECTRUM, LLC | |
| FRDRMDFRXQX | 836G SHENTEL COMMUNICATIONS, LLC. - MD | |
| FRDRMDFRXSX | 6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | |
| FRDRMDFRXSX | 6394 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV | |
| FRDRMDFRXTX | 318J COMCAST IP PHONE, LLC | |
| FRDRMDFRXUX | 478J NUSO, LLC | |
| FRDRMDFRXVX | 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC | |
| FRDRMDFRY0X |
Last updated: Thu, 16 Oct 2025 03:04:18 UTC
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