Local Calling Guide
Area code/prefix search
NPA: 231
[Rate centres in NPA 231]
[Dial plan for NPA 231]
NXX: 421
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
231-421
| A |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
|
|
231-421
| 0 |
Traverse City |
MI |
GDRPMIBLXTZ |
3535 ACD TELECOM, INC. - MI |
348 |
|
2005-02-18 |
|
231-421
| 1 |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2007-02-25 |
|
231-421
| 2 |
Traverse City |
MI |
GDRPMIBL52Z |
829J PAETEC ITEL, LLC |
348 |
|
2005-09-22 |
|
231-421
| 3 |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2008-02-25 |
|
231-421
| 4 |
Traverse City |
MI |
GDRPMIBL04Z |
543C ONVOY, LLCV - MI |
348 |
|
2011-01-10 |
|
231-421
| 5 |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2008-08-21 |
|
231-421
| 6 |
Traverse City |
MI |
GDRPMIQLX5Y |
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
2006-08-29 |
|
231-421
| 7 |
Traverse City |
MI |
GDRPMIQLX5Y |
6120 LEVEL 3 COMMUNICATIONS, LLC - MI |
348 |
|
2006-08-29 |
|
231-421
| 8 |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2009-10-04 |
|
231-421
| 9 |
Traverse City |
MI |
|
792K CHARTER IP ENABLED SERVICES, LLC |
348 |
|
2010-12-02 |
|
Last updated: Sun, 01 Jun 2025 02:18:11 UTC
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