Local Calling Guide
Area code/prefix search
NPA: 231
[Rate centres in NPA 231]
[Dial plan for NPA 231]
NXX: 570
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 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 |
|
Last updated: Tue, 13 Jan 2026 21:50:02 UTC
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