Local Calling Guide
Area code/prefix search
Northport, MI
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 231-364
| A |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
|
|
| 231-364
| 0 |
|
991E BANDWIDTH.COM CLEC, LLC - MI |
348 |
|
2021-12-09 |
|
| 231-364
| 1 |
|
939H COMMIO, LLC |
348 |
|
2022-12-01 |
|
| 231-364
| 2 |
|
543C ONVOY, LLCV - MI |
348 |
|
2022-03-04 |
|
| 231-364
| 4 |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-08-15 |
|
| 231-364
| 5 |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-08-15 |
|
| 231-364
| 6 |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-08-16 |
|
| 231-364
| 7 |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-11-22 |
|
| 231-364
| 8 |
|
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-11-22 |
|
| 231-364
| 9 |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-01-05 |
|
| 231-386
| A |
NPRTMIMNRSA |
9323 MICHIGAN BELL TEL CO |
348 |
|
|
|
| 231-386
| 0 |
|
933G PEERLESS NETWORK OF MICHIGAN, LLC - MI |
348 |
|
2015-12-24 |
|
| 231-386
| 1 |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2007-02-25 |
|
| 231-386
| 2 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
2016-11-18 |
|
| 231-386
| 3 |
|
516C AT&T CORP. |
348 |
|
2013-11-08 |
|
| 231-386
| 4 |
|
543C ONVOY, LLCV - MI |
348 |
|
2021-06-17 |
|
| 231-386
| 5 |
|
9323 MICHIGAN BELL TEL CO |
348 |
|
|
|
| 231-386
| 6 |
|
543C ONVOY, LLCV - MI |
348 |
|
2013-03-18 |
|
| 231-386
| 7 |
|
9323 MICHIGAN BELL TEL CO |
348 |
|
|
|
| 231-386
| 8 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
348 |
|
2015-09-18 |
|
| 231-386
| 9 |
|
9323 MICHIGAN BELL TEL CO |
348 |
|
|
|
| 231-432
| A |
WYNGMIKAGT2 |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-432
| 0 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
348 |
|
|
|
| 231-432
| 1 |
|
3535 ACD TELECOM, INC. - MI |
348 |
|
2005-02-17 |
|
| 231-432
| 2 |
|
543C ONVOY, LLCV - MI |
348 |
|
2016-03-24 |
|
| 231-432
| 3 |
|
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
2008-11-13 |
|
| 231-432
| 4 |
|
770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
348 |
|
2013-08-06 |
|
| 231-432
| 5 |
|
543C ONVOY, LLCV - MI |
348 |
|
2012-06-01 |
|
| 231-432
| 6 |
|
829J PAETEC ITEL, LLC |
348 |
|
2004-02-10 |
|
| 231-432
| 7 |
|
543C ONVOY, LLCV - MI |
348 |
|
2013-01-04 |
|
| 231-432
| 8 |
|
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
2004-07-17 |
|
| 231-432
| 9 |
|
543C ONVOY, LLCV - MI |
348 |
|
2016-03-24 |
|
| 231-446
| A |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
|
|
| 231-446
| 2 |
|
543C ONVOY, LLCV - MI |
348 |
|
2023-09-16 |
|
| 231-637
| A |
|
817J INTERACTIVE SERVICES NETWORK, INC. |
348 |
|
|
|
| 231-877
| A |
GDRPMIBLX8Z |
2550 123.NET, LLC |
348 |
|
|
|
| 231-899
| A |
GDRPMIBLX8Z |
2550 123.NET, LLC |
348 |
|
|
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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