Local Calling Guide
Area code/prefix search
NPA: 657
[Rate centres in NPA 657]
[Dial plan for NPA 657]
NXX: 256
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 657-256
| A |
Cypress |
CA |
LSANCARCD3S |
649C ONVOY, LLC - CA |
730 |
|
2024-01-23 |
|
| 657-256
| 0 |
Cypress |
CA |
LSANCA039MD |
981E BANDWIDTH.COM CLEC, LLC - CA |
730 |
|
2014-12-20 |
|
| 657-256
| 1 |
Cypress |
CA |
SHOKCA022MD |
576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB |
730 |
|
2015-02-06 |
|
| 657-256
| 2 |
Cypress |
CA |
TRNECAGB7MD |
6529 T-MOBILE USA, INC. |
730 |
|
2015-03-07 |
|
| 657-256
| 3 |
Cypress |
CA |
LSANCARCD3S |
649C ONVOY, LLC - CA |
730 |
|
2015-01-05 |
|
| 657-256
| 4 |
Cypress |
CA |
LSANCARCD3S |
649C ONVOY, LLC - CA |
730 |
|
2015-01-05 |
|
| 657-256
| 5 |
Cypress |
CA |
LSANCARCD3S |
649C ONVOY, LLC - CA |
730 |
|
2015-01-05 |
|
| 657-256
| 6 |
Cypress |
CA |
LSANCARCD3S |
649C ONVOY, LLC - CA |
730 |
|
2015-01-05 |
|
| 657-256
| 7 |
Cypress |
CA |
TRNECAGB7MD |
6529 T-MOBILE USA, INC. |
730 |
|
2015-03-07 |
|
| 657-256
| 8 |
Cypress |
CA |
TRNECAGB7MD |
6529 T-MOBILE USA, INC. |
730 |
|
2015-02-14 |
|
| 657-256
| 9 |
Cypress |
CA |
TRNECAGB7MD |
6529 T-MOBILE USA, INC. |
730 |
|
2015-02-14 |
|
Last updated: Sat, 05 Apr 2025 03:03:23 UTC
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