Local Calling Guide
Area code/prefix search
NPA: 231
[Rate centres in NPA 231]
[Dial plan for NPA 231]
NXX: 331
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 231-331
| A |
Alden |
MI |
ALDNMIXHRS0 |
0695 FRONTIER NORTH, INC. - MI |
348 |
|
|
|
| 231-331
| 0 |
Alden |
MI |
GDRPMIBLXTZ |
3535 ACD TELECOM, INC. - MI |
348 |
|
2004-10-23 |
|
| 231-331
| 1 |
Alden |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2015-08-13 |
|
| 231-331
| 2 |
Alden |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2015-08-13 |
|
| 231-331
| 3 |
Alden |
MI |
GDRPMIBL00Z |
991E BANDWIDTH.COM CLEC, LLC - MI |
348 |
|
2012-04-13 |
|
| 231-331
| 4 |
Alden |
MI |
ALDNMIXHRS0 |
0695 FRONTIER NORTH, INC. - MI |
348 |
|
|
|
| 231-331
| 5 |
Alden |
MI |
ANTSMIADPS0 |
351D CHARTER FIBERLINK - MICHIGAN, LLC - MI |
348 |
|
2007-02-25 |
|
| 231-331
| 6 |
Alden |
MI |
ALDNMIXHRS0 |
0695 FRONTIER NORTH, INC. - MI |
348 |
|
|
|
| 231-331
| 7 |
Alden |
MI |
ALDNMIXHRS0 |
0695 FRONTIER NORTH, INC. - MI |
348 |
|
|
|
| 231-331
| 8 |
Alden |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2013-04-01 |
|
| 231-331
| 9 |
Alden |
MI |
TRCYMIMNWMD |
508J CENTURYLINK COMMUNICATIONS, LLC |
348 |
|
2015-09-16 |
|
Last updated: Sun, 26 Jan 2025 15:59:20 UTC
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