Local Calling Guide
Area code/prefix search
NPA: 231
[Rate centres in NPA 231]
[Dial plan for NPA 231]
NXX: 674
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 231-674
| A |
Grant |
MI |
GDRPMIQLX5Y |
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
|
|
| 231-674
| 0 |
Grant |
MI |
GDRPMIQLX5Y |
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
|
|
| 231-674
| 1 |
Grant |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2012-12-30 |
|
| 231-674
| 2 |
Grant |
MI |
GDRPMIBL15Z |
516C AT&T CORP. |
348 |
|
2011-01-31 |
|
| 231-674
| 3 |
Grant |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2012-06-01 |
|
| 231-674
| 4 |
Grant |
MI |
GDRPMIQLX5Y |
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
2004-07-17 |
|
| 231-674
| 5 |
Grant |
MI |
GDRPMIBL00Z |
991E BANDWIDTH.COM CLEC, LLC - MI |
348 |
|
2014-09-01 |
|
| 231-674
| 6 |
Grant |
MI |
TRCYMIMNWMD |
508J CENTURYLINK COMMUNICATIONS, LLC |
348 |
|
2015-09-15 |
|
| 231-674
| 7 |
Grant |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2014-10-13 |
|
| 231-674
| 8 |
Grant |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2016-03-21 |
|
| 231-674
| 9 |
Grant |
MI |
GDRPMIQLX5Y |
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
|
|
Last updated: Sun, 26 Jan 2025 15:59:20 UTC
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