Local Calling Guide
Area code/prefix search
Detroit Zone 4, MI
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| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 313-474
| 6 |
|
933G PEERLESS NETWORK OF MICHIGAN, LLC - MI |
340 |
|
2019-10-25 |
|
| 313-474
| 7 |
|
933G PEERLESS NETWORK OF MICHIGAN, LLC - MI |
340 |
|
2019-12-30 |
|
| 313-474
| 8 |
|
933G PEERLESS NETWORK OF MICHIGAN, LLC - MI |
340 |
|
2020-04-19 |
|
| 313-474
| 9 |
|
543C ONVOY, LLCV - MI |
340 |
|
2020-09-12 |
|
| 313-491
| A |
DTRTMIHGDS0 |
9323 MICHIGAN BELL TEL CO |
340 |
|
|
|
| 313-491
| 0 |
|
9323 MICHIGAN BELL TEL CO |
340 |
|
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|
| 313-491
| 1 |
|
9323 MICHIGAN BELL TEL CO |
340 |
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| 313-491
| 2 |
|
9323 MICHIGAN BELL TEL CO |
340 |
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| 313-491
| 3 |
|
9323 MICHIGAN BELL TEL CO |
340 |
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|
| 313-491
| 4 |
|
9323 MICHIGAN BELL TEL CO |
340 |
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| 313-491
| 5 |
|
9323 MICHIGAN BELL TEL CO |
340 |
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| 313-491
| 6 |
|
9323 MICHIGAN BELL TEL CO |
340 |
|
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|
| 313-491
| 7 |
|
9323 MICHIGAN BELL TEL CO |
340 |
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| 313-491
| 8 |
|
9323 MICHIGAN BELL TEL CO |
340 |
|
|
|
| 313-491
| 9 |
|
2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC |
340 |
|
2011-01-14 |
|
| 313-493
| A |
DTRTMIVTDS0 |
9323 MICHIGAN BELL TEL CO |
340 |
|
|
|
| 313-493
| 0 |
|
9323 MICHIGAN BELL TEL CO |
340 |
|
|
|
| 313-493
| 1 |
|
9323 MICHIGAN BELL TEL CO |
340 |
|
|
|
| 313-493
| 2 |
|
2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC |
340 |
|
2012-12-19 |
|
| 313-493
| 3 |
|
9323 MICHIGAN BELL TEL CO |
340 |
|
|
|
| 313-493
| 4 |
|
9323 MICHIGAN BELL TEL CO |
340 |
|
|
|
| 313-493
| 5 |
|
624H ONVOY SPECTRUM, LLC |
340 |
|
2021-11-13 |
|
| 313-493
| 6 |
|
9323 MICHIGAN BELL TEL CO |
340 |
|
|
|
| 313-493
| 7 |
|
9323 MICHIGAN BELL TEL CO |
340 |
|
|
|
| 313-493
| 8 |
|
9323 MICHIGAN BELL TEL CO |
340 |
|
|
|
| 313-493
| 9 |
|
9323 MICHIGAN BELL TEL CO |
340 |
|
|
|
| 313-512
| A |
SFLDMIDNDS6 |
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
340 |
|
|
|
| 313-512
| 1 |
|
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
340 |
|
2020-10-13 |
|
| 313-512
| 2 |
|
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
340 |
|
2020-10-13 |
|
| 313-512
| 3 |
|
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
340 |
|
2020-10-13 |
|
| 313-512
| 4 |
|
543C ONVOY, LLCV - MI |
340 |
|
2020-12-03 |
|
| 313-512
| 5 |
|
543C ONVOY, LLCV - MI |
340 |
|
2020-12-03 |
|
| 313-512
| 6 |
|
543C ONVOY, LLCV - MI |
340 |
|
2020-12-03 |
|
| 313-512
| 7 |
|
543C ONVOY, LLCV - MI |
340 |
|
2020-12-03 |
|
| 313-512
| 8 |
|
543C ONVOY, LLCV - MI |
340 |
|
2020-12-03 |
|
| 313-512
| 9 |
|
543C ONVOY, LLCV - MI |
340 |
|
2020-12-03 |
|
| 313-514
| A |
SFLDMITODS2 |
543C ONVOY, LLCV - MI |
340 |
|
|
|
| 313-514
| 0 |
|
939H COMMIO, LLC |
340 |
|
2021-08-29 |
|
| 313-514
| 1 |
|
939H COMMIO, LLC |
340 |
|
2021-08-29 |
|
| 313-514
| 2 |
|
939H COMMIO, LLC |
340 |
|
2021-08-29 |
|
| 313-514
| 3 |
|
624H ONVOY SPECTRUM, LLC |
340 |
|
2021-11-13 |
|
| 313-514
| 4 |
|
543C ONVOY, LLCV - MI |
340 |
|
2021-08-16 |
|
| 313-514
| 5 |
|
543C ONVOY, LLCV - MI |
340 |
|
2021-08-16 |
|
| 313-514
| 6 |
|
543C ONVOY, LLCV - MI |
340 |
|
2021-08-16 |
|
| 313-514
| 7 |
|
543C ONVOY, LLCV - MI |
340 |
|
2021-08-16 |
|
| 313-514
| 8 |
|
939H COMMIO, LLC |
340 |
|
2021-08-29 |
|
| 313-514
| 9 |
|
939H COMMIO, LLC |
340 |
|
2021-08-29 |
|
| 313-536
| A |
SFLDMIMNXRX |
991E BANDWIDTH.COM CLEC, LLC - MI |
340 |
|
|
|
| 313-536
| 0 |
|
991E BANDWIDTH.COM CLEC, LLC - MI |
340 |
|
2021-04-17 |
|
| 313-536
| 1 |
|
991E BANDWIDTH.COM CLEC, LLC - MI |
340 |
|
2021-04-17 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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