Local Calling Guide
Area code/prefix search
Sheridan, MI
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 989-291
| A |
SHRDMIXGRS0 |
0695 FRONTIER NORTH, INC. - MI |
344 |
|
|
|
| 989-291
| 0 |
|
0695 FRONTIER NORTH, INC. - MI |
344 |
|
|
|
| 989-291
| 1 |
|
145J TERRA NOVA TELECOM INC. |
344 |
|
2025-07-10 |
|
| 989-291
| 2 |
|
2550 123.NET, LLC |
344 |
|
2005-09-03 |
|
| 989-291
| 3 |
|
0695 FRONTIER NORTH, INC. - MI |
344 |
|
|
|
| 989-291
| 4 |
|
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
344 |
|
2006-05-31 |
|
| 989-291
| 5 |
|
0695 FRONTIER NORTH, INC. - MI |
344 |
|
|
|
| 989-291
| 6 |
|
792K CHARTER IP ENABLED SERVICES, LLC |
344 |
|
2007-03-18 |
|
| 989-291
| 7 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
344 |
|
2009-09-26 |
|
| 989-291
| 8 |
|
691A DAYSTARR, LLC DBA DAYSTARR COMMUNICATIONS - MI |
344 |
|
2014-07-12 |
|
| 989-613
| A |
SGNWMIATUMD |
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
344 |
|
|
|
| 989-613
| 0 |
|
6534 NEW CINGULAR WIRELESS PCS, LLC - IL |
344 |
|
|
|
| 989-613
| 1 |
|
624H ONVOY SPECTRUM, LLC |
344 |
|
2023-05-30 |
|
| 989-613
| 3 |
|
543C ONVOY, LLCV - MI |
344 |
|
2020-11-27 |
|
| 989-613
| 4 |
|
543C ONVOY, LLCV - MI |
344 |
|
2020-11-27 |
|
| 989-613
| 5 |
|
490J DISH WIRELESS, LLC |
344 |
|
2024-04-27 |
|
| 989-613
| 6 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
344 |
|
2015-05-08 |
|
| 989-613
| 7 |
|
543C ONVOY, LLCV - MI |
344 |
|
2013-04-05 |
|
| 989-613
| 9 |
|
991E BANDWIDTH.COM CLEC, LLC - MI |
344 |
|
2020-05-10 |
|
Last updated: Tue, 13 Jan 2026 21:50:02 UTC
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