Local Calling Guide
Area code/prefix search
Switch: DTRTMIBAUMD
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 313-351
| A |
Detroit Zone 3 |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
| 313-360
| A |
Detroit Zone 1 |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
| 313-490
| A |
Detroit Zone 6 |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
| 313-546
| A |
Detroit Zone 1 |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
| 313-678
| A |
Detroit Zone 2 |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
| 313-756
| A |
Detroit Zone 1 |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
| 586-310
| A |
Mount Clemens |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
| 586-316
| A |
Warren |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
| 734-510
| A |
Ann Arbor |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
| 810-254
| A |
Grand Blanc |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
| 947-276
| A |
Pontiac |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
2024-04-12 |
|
| 947-287
| A |
Pontiac |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
2024-07-05 |
|
| 947-524
| A |
Royal Oak |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
| 947-881
| A |
Southfield |
MI |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
340 |
|
|
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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