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 |
| 231-563
| 5 |
Muskegon |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-07-08 |
|
| 231-563
| 6 |
Muskegon |
MI |
|
318J COMCAST IP PHONE, LLC |
348 |
|
2008-01-15 |
|
| 231-563
| 7 |
Muskegon |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2023-10-01 |
|
| 231-563
| 8 |
Muskegon |
MI |
|
6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
348 |
|
2025-06-23 |
|
| 231-563
| 9 |
Muskegon |
MI |
|
6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
348 |
|
2025-06-23 |
|
| 231-564
| A |
Kalkaska |
MI |
WYNGMIKAGT2 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-564
| 0 |
Kalkaska |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-564
| 1 |
Kalkaska |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-564
| 2 |
Kalkaska |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-564
| 3 |
Kalkaska |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2008-05-11 |
|
| 231-564
| 4 |
Kalkaska |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2017-12-03 |
|
| 231-564
| 5 |
Kalkaska |
MI |
|
991E BANDWIDTH.COM CLEC, LLC - MI |
348 |
|
2018-10-26 |
|
| 231-564
| 6 |
Kalkaska |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-03-06 |
|
| 231-564
| 7 |
Kalkaska |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-03-06 |
|
| 231-564
| 8 |
Kalkaska |
MI |
|
6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
348 |
|
2019-04-30 |
|
| 231-564
| 9 |
Kalkaska |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2024-10-05 |
|
| 231-566
| A |
Harrietta |
MI |
BRSPMI097MD |
516J TON80 COMMUNICATIONS, LLC |
348 |
|
|
|
| 231-566
| 0 |
Harrietta |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-08-06 |
|
| 231-566
| 1 |
Harrietta |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2023-05-28 |
|
| 231-566
| 5 |
Harrietta |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2022-12-29 |
|
| 231-566
| 6 |
Harrietta |
MI |
|
516J TON80 COMMUNICATIONS, LLC |
348 |
|
2022-04-23 |
|
| 231-567
| A |
Muskegon |
MI |
GDRPMIBL06Z |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
348 |
|
|
|
| 231-567
| 0 |
Muskegon |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-07-11 |
|
| 231-567
| 1 |
Muskegon |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-07-11 |
|
| 231-567
| 2 |
Muskegon |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-07-11 |
|
| 231-567
| 3 |
Muskegon |
MI |
|
5562 METROPCS, INC. |
348 |
|
2021-05-02 |
|
| 231-567
| 4 |
Muskegon |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-07-11 |
|
| 231-567
| 5 |
Muskegon |
MI |
|
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
348 |
|
2021-01-08 |
|
| 231-567
| 6 |
Muskegon |
MI |
|
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
348 |
|
2021-01-08 |
|
| 231-567
| 7 |
Muskegon |
MI |
|
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
348 |
|
2021-01-08 |
|
| 231-567
| 8 |
Muskegon |
MI |
|
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
348 |
|
2021-01-08 |
|
| 231-567
| 9 |
Muskegon |
MI |
|
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
348 |
|
2021-01-08 |
|
| 231-568
| A |
Traverse City |
MI |
GDRPMIBLX8Z |
2550 123.NET, LLC |
348 |
|
|
|
| 231-569
| A |
Petoskey |
MI |
GDRPMIBLXGZ |
9748 AMERICAN MESSAGING SERVICES, LLC |
348 |
|
|
|
| 231-570
| A |
Fife Lake |
MI |
WYNGMIKAGT2 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-570
| 0 |
Fife Lake |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-570
| 1 |
Fife Lake |
MI |
|
3535 ACD TELECOM, INC. - MI |
348 |
|
2005-02-11 |
|
| 231-570
| 2 |
Fife Lake |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2009-05-10 |
|
| 231-570
| 3 |
Fife Lake |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2012-03-16 |
|
| 231-570
| 4 |
Fife Lake |
MI |
|
991E BANDWIDTH.COM CLEC, LLC - MI |
348 |
|
2012-11-18 |
|
| 231-570
| 5 |
Fife Lake |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2013-04-01 |
|
| 231-570
| 6 |
Fife Lake |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2016-03-18 |
|
| 231-570
| 7 |
Fife Lake |
MI |
|
516C AT&T CORP. |
348 |
|
2011-08-23 |
|
| 231-570
| 8 |
Fife Lake |
MI |
|
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
2004-07-16 |
|
| 231-570
| 9 |
Fife Lake |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2016-03-18 |
|
| 231-571
| A |
Muskegon |
MI |
MSKGMIXKDS1 |
0695 FRONTIER NORTH, INC. - MI |
348 |
|
|
|
| 231-571
| 0 |
Muskegon |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2005-04-02 |
|
| 231-571
| 1 |
Muskegon |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2015-12-09 |
|
| 231-571
| 2 |
Muskegon |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2004-10-17 |
|
| 231-571
| 3 |
Muskegon |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2004-10-17 |
|
<< 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 >>
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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