Local Calling Guide
Area code/prefix search
NPA: 310
[Rate centres in NPA 310]
[Dial plan for NPA 310]
NXX: 340
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 310-340
| A |
Hawthorne |
CA |
CYCMCALLCM5 |
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
|
|
| 310-340
| 0 |
Hawthorne |
CA |
|
649C ONVOY, LLC - CA |
730 |
|
2017-03-27 |
|
| 310-340
| 1 |
Hawthorne |
CA |
|
649C ONVOY, LLC - CA |
730 |
|
2017-03-27 |
|
| 310-340
| 2 |
Hawthorne |
CA |
|
649C ONVOY, LLC - CA |
730 |
|
2017-03-27 |
|
| 310-340
| 3 |
Hawthorne |
CA |
|
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
730 |
|
2017-04-17 |
|
| 310-340
| 4 |
Hawthorne |
CA |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2017-11-20 |
|
| 310-340
| 5 |
Hawthorne |
CA |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2017-05-18 |
|
| 310-340
| 6 |
Hawthorne |
CA |
|
649C ONVOY, LLC - CA |
730 |
|
2017-06-11 |
|
| 310-340
| 7 |
Hawthorne |
CA |
|
649C ONVOY, LLC - CA |
730 |
|
2017-04-08 |
|
| 310-340
| 8 |
Hawthorne |
CA |
|
6529 T-MOBILE USA, INC. |
730 |
|
2017-04-15 |
|
| 310-340
| 9 |
Hawthorne |
CA |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2017-03-02 |
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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