Local Calling Guide
Area code/prefix search
NPA: 661
[Rate centres in NPA 661]
[Dial plan for NPA 661]
NXX: 568
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 661-568
| A |
Santa Clarita: Newhall-Castaic DA |
CA |
SHOKCA02IMD |
7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
730 |
|
|
|
| 661-568
| 0 |
Santa Clarita: Newhall-Castaic DA |
CA |
LSANCARCD3S |
649C ONVOY, LLC - CA |
730 |
|
2016-03-07 |
|
| 661-568
| 1 |
Santa Clarita: Newhall-Castaic DA |
CA |
LSANCARCD3S |
649C ONVOY, LLC - CA |
730 |
|
2016-03-07 |
|
| 661-568
| 2 |
Santa Clarita: Newhall-Castaic DA |
CA |
SHOKCA02IMD |
7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
730 |
|
2015-11-27 |
|
| 661-568
| 3 |
Santa Clarita: Newhall-Castaic DA |
CA |
|
793K TWC IP ENABLED SERVICES, LLC |
730 |
|
2016-06-10 |
|
| 661-568
| 4 |
Santa Clarita: Newhall-Castaic DA |
CA |
SHOKCA02IMD |
7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
730 |
|
2017-05-08 |
|
| 661-568
| 5 |
Santa Clarita: Newhall-Castaic DA |
CA |
LSANCA039MD |
981E BANDWIDTH.COM CLEC, LLC - CA |
730 |
|
2015-10-24 |
|
| 661-568
| 6 |
Santa Clarita: Newhall-Castaic DA |
CA |
LSANCA039MD |
981E BANDWIDTH.COM CLEC, LLC - CA |
730 |
|
2016-07-23 |
|
| 661-568
| 7 |
Santa Clarita: Newhall-Castaic DA |
CA |
SHOKCA02IMD |
7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
730 |
|
2016-03-07 |
|
| 661-568
| 8 |
Santa Clarita: Newhall-Castaic DA |
CA |
BLTNCAADGMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
730 |
|
2016-08-08 |
|
| 661-568
| 9 |
Santa Clarita: Newhall-Castaic DA |
CA |
|
793K TWC IP ENABLED SERVICES, LLC |
730 |
|
2015-11-05 |
|
Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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