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
310-352 GARDENA, CA PACIFIC BELL
310-353 GARDENA, CA PACIFIC BELL
310-354 GARDENA, CA PACIFIC BELL
310-355 HAWTHORNE, CA PACIFIC BELL
310-356 EL SEGUNDO, CA GLOBAL CROSSING LOCAL SERVICES, INC.-CA
310-357 TORRANCE, CA TELEPORT COMMUNICATIONS GROUP - LOS ANGELES
310-358 Beverly Hills, CA PACIFIC BELL
310-359 MALIBU, CA TNCI-OP-CO - CA
310-360 Beverly Hills, CA PACIFIC BELL
310-361 COMPTON, CA TNCI-OP-CO - CA
310-362 Beverly Hills, CA TNCI-OP-CO - CA
310-363 HAWTHORNE, CA PACIFIC BELL
310-364 EL SEGUNDO, CA PACIFIC BELL
310-365 GARDENA, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-366 GARDENA, CA PACIFIC BELL
310-367 Santa Monica / Mar Vista, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-368 GARDENA, CA USA MOBILITY WIRELESS, INC.
310-369 Beverly Hills, CA TELEPORT COMMUNICATIONS GROUP - LOS ANGELES
310-370 REDONDO, CA FRONTIER CALIFORNIA INC.
310-371 REDONDO, CA FRONTIER CALIFORNIA INC.
310-372 REDONDO, CA FRONTIER CALIFORNIA INC.
310-373 REDONDO, CA FRONTIER CALIFORNIA INC.
310-374 REDONDO, CA FRONTIER CALIFORNIA INC.
310-375 REDONDO, CA FRONTIER CALIFORNIA INC.
310-376 REDONDO, CA FRONTIER CALIFORNIA INC.
310-377 REDONDO, CA FRONTIER CALIFORNIA INC.
310-378 REDONDO, CA FRONTIER CALIFORNIA INC.
310-379 REDONDO, CA FRONTIER CALIFORNIA INC.
310-380 GARDENA, CA PACIFIC BELL
310-381 TORRANCE, CA PACIFIC BELL
310-382 Santa Monica, CA LEVEL 3 TELECOM OF CALIFORNIA, LP - CA
310-383 Santa Monica / Mar Vista, CA NEW CINGULAR WIRELESS PCS, LLC
310-384 Culver City, CA NEW CINGULAR WIRELESS PCS, LLC
310-385 Beverly Hills, CA PACIFIC BELL
310-386 GARDENA, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-387 GARDENA, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-388 Beverly Hills, CA TNCI-OP-CO - CA
310-389 GARDENA, CA AMERICAN MESSAGING SERVICES, LLC
310-390 Santa Monica / Mar Vista, CA FRONTIER CALIFORNIA INC.
310-391 Santa Monica / Mar Vista, CA FRONTIER CALIFORNIA INC.
310-392 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-393 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-394 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-395 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-396 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-397 Santa Monica / Mar Vista, CA FRONTIER CALIFORNIA INC.
310-398 Santa Monica / Mar Vista, CA FRONTIER CALIFORNIA INC.
310-399 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-400 GARDENA, CA T-MOBILE USA, INC.
310-401 Santa Monica, CA LEVEL 3 COMMUNICATIONS, LLC - CA
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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