Local Calling Guide
Area code/prefix search
NPA: 858
[Rate centres in NPA 858]
[Dial plan for NPA 858]
NXX: 255
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 858-255
| A |
La Jolla |
CA |
SNDACA96DS0 |
7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
732 |
|
|
|
| 858-255
| 0 |
La Jolla |
CA |
SNDGCA02XIZ |
981E BANDWIDTH.COM CLEC, LLC - CA |
732 |
|
2011-07-04 |
|
| 858-255
| 1 |
La Jolla |
CA |
SNDGCA02XIZ |
981E BANDWIDTH.COM CLEC, LLC - CA |
732 |
|
2011-07-04 |
|
| 858-255
| 2 |
La Jolla |
CA |
|
649C ONVOY, LLC - CA |
732 |
|
2026-08-30 |
|
| 858-255
| 3 |
La Jolla |
CA |
SNDACA96DS0 |
7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
732 |
|
2011-04-02 |
|
| 858-255
| 4 |
La Jolla |
CA |
SNDGCA02XIZ |
981E BANDWIDTH.COM CLEC, LLC - CA |
732 |
|
2011-07-04 |
|
| 858-255
| 5 |
La Jolla |
CA |
SNDHCAAXJMD |
7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA |
732 |
|
2011-05-28 |
|
| 858-255
| 6 |
La Jolla |
CA |
SNDHCAAXJMD |
7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA |
732 |
|
2011-06-26 |
|
| 858-255
| 7 |
La Jolla |
CA |
SNDGCA02XIZ |
981E BANDWIDTH.COM CLEC, LLC - CA |
732 |
|
2011-07-04 |
|
| 858-255
| 8 |
La Jolla |
CA |
SNDGCA0291Z |
793K TWC IP ENABLED SERVICES, LLC |
732 |
|
2011-07-16 |
|
| 858-255
| 9 |
La Jolla |
CA |
SNDICAETAMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
732 |
|
2012-05-03 |
|
Last updated: Tue, 01 Sep 2026 00:40:05 UTC
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