Local Calling Guide
Area code/prefix search
NPA: 231
[Rate centres in NPA 231]
[Dial plan for NPA 231]
NXX: 790
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 231-790
| A |
Freesoil |
MI |
GDRPMIBL52Z |
829J PAETEC ITEL, LLC |
348 |
|
|
|
| 231-790
| 0 |
Freesoil |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2016-03-24 |
|
| 231-790
| 1 |
Freesoil |
MI |
GDRPMIBLXTZ |
3535 ACD TELECOM, INC. - MI |
348 |
|
2005-02-11 |
|
| 231-790
| 2 |
Freesoil |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2012-06-01 |
|
| 231-790
| 3 |
Freesoil |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2012-12-30 |
|
| 231-790
| 4 |
Freesoil |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2016-03-24 |
|
| 231-790
| 5 |
Freesoil |
MI |
GDRPMIBL15Z |
516C AT&T CORP. |
348 |
|
2011-08-23 |
|
| 231-790
| 6 |
Freesoil |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2013-04-01 |
|
| 231-790
| 7 |
Freesoil |
MI |
GDRPMIBL52Z |
829J PAETEC ITEL, LLC |
348 |
|
2004-02-03 |
|
| 231-790
| 8 |
Freesoil |
MI |
BRSPMI09DS0 |
933G PEERLESS NETWORK OF MICHIGAN, LLC - MI |
348 |
|
2015-12-26 |
|
| 231-790
| 9 |
Freesoil |
MI |
GDRPMIBL36Z |
624H ONVOY SPECTRUM, LLC |
348 |
|
2021-06-19 |
|
Last updated: Sun, 27 Apr 2025 12:48:38 UTC
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