National Phone Number Registry NPNR

Area Code 310 Location

Area code 310 is currently assigned for use in California since Nov 02, 1991. This area code originated from the 213 area code previously by means of area code split or overlay. View all phone prefixes used in area code 310 or other area codes in California.

(310)
Enter 7-digit phone number for area code 310 or the complete 10-digit phone number

Phone Prefixes for Area Code 310

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Area code Location Company / Service Provider
310-503 GARDENA, CA NEW CINGULAR WIRELESS PCS, LLC
310-504 REDONDO, CA PEERLESS NETWORK OF CALIFORNIA, LLC - CA
310-505 GARDENA, CA SPRINT SPECTRUM L.P.
310-506 MALIBU, CA FRONTIER CALIFORNIA INC.
310-507 SAN PEDRO, CA MCI WORLDCOM COMMUNICATIONS, INC., CA
310-508 GARDENA, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-509 COMPTON, CA USA MOBILITY WIRELESS, INC.
310-510 AVALON, CA PACIFIC BELL
310-512 GARDENA, CA PACIFIC BELL
310-513 SAN PEDRO, CA PACIFIC BELL
310-514 SAN PEDRO, CA PACIFIC BELL
310-515 GARDENA, CA PACIFIC BELL
310-516 GARDENA, CA PACIFIC BELL
310-517 LOMITA, CA PACIFIC BELL
310-518 SAN PEDRO, CA PACIFIC BELL
310-519 SAN PEDRO, CA PACIFIC BELL
310-521 SAN PEDRO, CA PACIFIC BELL
310-522 SAN PEDRO, CA PACIFIC BELL
310-523 GARDENA, CA PACIFIC BELL
310-524 EL SEGUNDO, CA PACIFIC BELL
310-525 GARDENA, CA TELEPORT COMMUNICATIONS GROUP - LOS ANGELES
310-526 Santa Monica, CA MCI WORLDCOM COMMUNICATIONS, INC., CA
310-527 GARDENA, CA PACIFIC BELL
310-528 GARDENA, CA NEW CINGULAR WIRELESS PCS, LLC
310-529 EL SEGUNDO, CA NEW CINGULAR WIRELESS PCS, LLC
310-530 LOMITA, CA PACIFIC BELL
310-531 HAWTHORNE, CA TELEPORT COMMUNICATIONS GROUP - LOS ANGELES
310-532 GARDENA, CA PACIFIC BELL
310-533 TORRANCE, CA PACIFIC BELL
310-534 LOMITA, CA PACIFIC BELL
310-535 EL SEGUNDO, CA PACIFIC BELL
310-536 HAWTHORNE, CA PACIFIC BELL
310-537 COMPTON, CA PACIFIC BELL
310-538 GARDENA, CA PACIFIC BELL
310-539 LOMITA, CA PACIFIC BELL
310-540 REDONDO, CA FRONTIER CALIFORNIA INC.
310-541 REDONDO, CA FRONTIER CALIFORNIA INC.
310-542 REDONDO, CA FRONTIER CALIFORNIA INC.
310-543 REDONDO, CA FRONTIER CALIFORNIA INC.
310-544 REDONDO, CA FRONTIER CALIFORNIA INC.
310-545 REDONDO, CA FRONTIER CALIFORNIA INC.
310-546 REDONDO, CA FRONTIER CALIFORNIA INC.
310-547 SAN PEDRO, CA PACIFIC BELL
310-548 SAN PEDRO, CA PACIFIC BELL
310-549 SAN PEDRO, CA PACIFIC BELL
310-550 Beverly Hills, CA PACIFIC BELL
310-551 Beverly Hills, CA PACIFIC BELL
310-552 Beverly Hills, CA PACIFIC BELL
310-553 Beverly Hills, CA PACIFIC BELL
310-554 COMPTON, CA T-MOBILE USA, INC.
New numbers being added to 310 area code
Effective: 05/05/2017
310-620 in BEVERLY HILLS, CA
INTEGRATED PATH COMMUNICATIONS, LLC - CA
310 Area Code Information
Type of code: General Purpose Code
Location: CA - US
Time zone: P
Assigned for use: Yes
Code in service: Yes
Service date: November 02, 1991
In jeopardy: No
Relief in progress: No
NPA Relief status:
Code assignable: Yes
Geographic or
non-geographic:
G
Reserved for future use: No
Planning letter(s): 347 250 IL90/08-055
Overlay code: Yes
Overlay complex: 310/424
Dialing plan Standard Permissive
Home local calls: 1+10D NA
Foreign local calls: 1+10D NA
Home toll calls: 1+10D NA
Foreign toll calls: 1+10D -
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