Local Calling Guide
Area code/prefix search
NPA: 231
[Rate centres in NPA 231]
[Dial plan for NPA 231]
<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 231-292
| 1 |
Whitehall |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2010-09-13 |
|
| 231-292
| 2 |
Whitehall |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2010-09-30 |
|
| 231-292
| 3 |
Whitehall |
MI |
|
7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI |
348 |
|
2013-01-07 |
|
| 231-292
| 5 |
Whitehall |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2016-02-26 |
|
| 231-292
| 6 |
Whitehall |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2016-01-21 |
|
| 231-292
| 7 |
Whitehall |
MI |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
348 |
|
2015-09-19 |
|
| 231-292
| 8 |
Whitehall |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2014-09-14 |
|
| 231-292
| 9 |
Whitehall |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2013-03-18 |
|
| 231-293
| A |
Frankfort |
MI |
BRSPMI099MD |
321J HD CARRIER LLC |
348 |
|
|
|
| 231-293
| 0 |
Frankfort |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-04-28 |
|
| 231-293
| 1 |
Frankfort |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2022-12-22 |
|
| 231-293
| 2 |
Frankfort |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-07-11 |
|
| 231-293
| 3 |
Frankfort |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-07-06 |
|
| 231-293
| 4 |
Frankfort |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-07-06 |
|
| 231-293
| 5 |
Frankfort |
MI |
|
933G PEERLESS NETWORK OF MICHIGAN, LLC - MI |
348 |
|
2025-02-24 |
|
| 231-293
| 6 |
Frankfort |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-12-19 |
|
| 231-293
| 7 |
Frankfort |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2022-03-04 |
|
| 231-293
| 8 |
Frankfort |
MI |
|
933G PEERLESS NETWORK OF MICHIGAN, LLC - MI |
348 |
|
2021-07-15 |
|
| 231-293
| 9 |
Frankfort |
MI |
|
321J HD CARRIER LLC |
348 |
|
2021-07-05 |
|
| 231-294
| A |
Fife Lake |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
|
|
| 231-294
| 3 |
Fife Lake |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-08-16 |
|
| 231-294
| 4 |
Fife Lake |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-08-15 |
|
| 231-294
| 5 |
Fife Lake |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-08-15 |
|
| 231-294
| 8 |
Fife Lake |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-11-22 |
|
| 231-294
| 9 |
Fife Lake |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-11-22 |
|
| 231-295
| A |
Lake City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
|
|
| 231-295
| 1 |
Lake City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
|
|
| 231-295
| 7 |
Lake City |
MI |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
348 |
|
2015-08-08 |
|
| 231-296
| A |
Fremont |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
|
|
| 231-296
| 0 |
Fremont |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2021-06-27 |
|
| 231-296
| 1 |
Fremont |
MI |
|
515J IP HORIZON LLC |
348 |
|
2021-12-31 |
|
| 231-296
| 2 |
Fremont |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-07-02 |
|
| 231-296
| 4 |
Fremont |
MI |
|
318J COMCAST IP PHONE, LLC |
348 |
|
2022-11-18 |
|
| 231-296
| 5 |
Fremont |
MI |
|
732J NUSO, LLC |
348 |
|
2024-11-15 |
|
| 231-296
| 6 |
Fremont |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-07-11 |
|
| 231-296
| 7 |
Fremont |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-07-11 |
|
| 231-297
| A |
Kingsley |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
|
|
| 231-297
| 0 |
Kingsley |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-04-06 |
|
| 231-297
| 1 |
Kingsley |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-12-03 |
|
| 231-297
| 3 |
Kingsley |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-12-03 |
|
| 231-297
| 4 |
Kingsley |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2022-04-17 |
|
| 231-297
| 5 |
Kingsley |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2022-12-19 |
|
| 231-297
| 6 |
Kingsley |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-08-12 |
|
| 231-297
| 7 |
Kingsley |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-08-26 |
|
| 231-297
| 8 |
Kingsley |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-08-26 |
|
| 231-297
| 9 |
Kingsley |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-07-08 |
|
| 231-298
| A |
Irons |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
|
|
| 231-298
| 0 |
Irons |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2021-06-27 |
|
| 231-298
| 2 |
Irons |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-07-02 |
|
| 231-298
| 4 |
Irons |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2022-12-22 |
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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