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 |
| 231-413
| 8 |
Kalkaska |
MI |
|
2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC |
348 |
|
2022-04-17 |
|
| 231-413
| 9 |
Kalkaska |
MI |
|
2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC |
348 |
|
2022-04-17 |
|
| 231-414
| A |
Newaygo |
MI |
WYNGMIKAGT2 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-414
| 0 |
Newaygo |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-414
| 1 |
Newaygo |
MI |
|
2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC |
348 |
|
2009-05-12 |
|
| 231-414
| 2 |
Newaygo |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2009-01-25 |
|
| 231-414
| 3 |
Newaygo |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2009-07-05 |
|
| 231-414
| 4 |
Newaygo |
MI |
|
6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
348 |
|
2005-02-06 |
|
| 231-414
| 5 |
Newaygo |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-414
| 6 |
Newaygo |
MI |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-414
| 7 |
Newaygo |
MI |
|
6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
348 |
|
2006-02-20 |
|
| 231-414
| 8 |
Newaygo |
MI |
|
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
2006-05-31 |
|
| 231-414
| 9 |
Newaygo |
MI |
|
3535 ACD TELECOM, INC. - MI |
348 |
|
2005-02-17 |
|
| 231-415
| A |
Dublin |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
|
|
| 231-415
| 1 |
Dublin |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2023-04-23 |
|
| 231-416
| A |
Big Rapids |
MI |
GDRPMIBLXGZ |
9748 AMERICAN MESSAGING SERVICES, LLC |
348 |
|
|
|
| 231-417
| A |
Petoskey |
MI |
GDRPMIBL06Z |
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
348 |
|
|
|
| 231-417
| 0 |
Petoskey |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-09-03 |
|
| 231-417
| 1 |
Petoskey |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2024-05-25 |
|
| 231-417
| 6 |
Petoskey |
MI |
|
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
348 |
|
2023-03-12 |
|
| 231-418
| A |
Marion |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
|
|
| 231-418
| 0 |
Marion |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2024-05-25 |
|
| 231-418
| 2 |
Marion |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-09-10 |
|
| 231-418
| 9 |
Marion |
MI |
|
933G PEERLESS NETWORK OF MICHIGAN, LLC - MI |
348 |
|
2023-10-28 |
|
| 231-419
| A |
Bellaire |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
|
|
| 231-419
| 0 |
Bellaire |
MI |
|
6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
348 |
|
2023-10-10 |
|
| 231-419
| 1 |
Bellaire |
MI |
|
6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
348 |
|
2025-09-04 |
|
| 231-419
| 2 |
Bellaire |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-09-10 |
|
| 231-420
| A |
Cheboygan |
MI |
GDRQMIBODMD |
6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
348 |
|
|
|
| 231-421
| A |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
|
|
| 231-421
| 0 |
Traverse City |
MI |
|
3535 ACD TELECOM, INC. - MI |
348 |
|
2005-02-18 |
|
| 231-421
| 1 |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2007-02-25 |
|
| 231-421
| 2 |
Traverse City |
MI |
|
829J PAETEC ITEL, LLC |
348 |
|
2005-09-22 |
|
| 231-421
| 3 |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2008-02-25 |
|
| 231-421
| 4 |
Traverse City |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2011-01-10 |
|
| 231-421
| 5 |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2008-08-21 |
|
| 231-421
| 6 |
Traverse City |
MI |
|
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
2006-08-29 |
|
| 231-421
| 7 |
Traverse City |
MI |
|
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
2006-08-29 |
|
| 231-421
| 8 |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2009-10-04 |
|
| 231-421
| 9 |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2010-12-02 |
|
| 231-422
| A |
Pellston |
MI |
TRCYMIMNWMD |
508J CENTURYLINK COMMUNICATIONS, LLC |
348 |
|
|
|
| 231-422
| 0 |
Pellston |
MI |
|
933G PEERLESS NETWORK OF MICHIGAN, LLC - MI |
348 |
|
2015-12-24 |
|
| 231-422
| 1 |
Pellston |
MI |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-06-20 |
|
| 231-422
| 2 |
Pellston |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-05-16 |
|
| 231-422
| 3 |
Pellston |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2016-04-15 |
|
| 231-422
| 4 |
Pellston |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2016-04-15 |
|
| 231-422
| 5 |
Pellston |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-03-27 |
|
| 231-422
| 7 |
Pellston |
MI |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
348 |
|
2015-10-23 |
|
| 231-422
| 8 |
Pellston |
MI |
|
991E BANDWIDTH.COM CLEC, LLC - MI |
348 |
|
2022-03-03 |
|
| 231-422
| 9 |
Pellston |
MI |
|
543C ONVOY, LLCV - MI |
348 |
|
2022-03-04 |
|
<< 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
Sponsored by: LES.NET
Like this site? We accept donations via PayPal.