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
310-251 GARDENA, CA NEW CINGULAR WIRELESS PCS, LLC
310-252 EL SEGUNDO, CA PACIFIC BELL
310-253 Culver City, CA PACIFIC BELL
310-254 W ANGELES, CA MCI WORLDCOM COMMUNICATIONS, INC., CA
310-255 Santa Monica, CA PACIFIC BELL - CLEC
310-256 INGLEWOOD, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-257 LOMITA, CA PACIFIC BELL
310-258 INGLEWOOD, CA PACIFIC BELL
310-259 INGLEWOOD, CA NEW CINGULAR WIRELESS PCS, LLC
310-260 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-261 Santa Monica, CA SPRINT SPECTRUM L.P.
310-262 Santa Monica, CA USA MOBILITY WIRELESS, INC.
310-263 HAWTHORNE, CA PACIFIC BELL
310-264 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-265 REDONDO, CA FRONTIER CALIFORNIA INC.
310-266 Santa Monica, CA NEW CINGULAR WIRELESS PCS, LLC
310-267 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-268 W ANGELES, CA FRONTIER CALIFORNIA INC.
310-269 Santa Monica, CA AMERICAN MESSAGING SERVICES, LLC
310-270 Beverly Hills, CA PACIFIC BELL
310-271 Beverly Hills, CA PACIFIC BELL
310-272 Beverly Hills, CA SPRINT SPECTRUM L.P.
310-273 Beverly Hills, CA PACIFIC BELL
310-274 Beverly Hills, CA PACIFIC BELL
310-275 Beverly Hills, CA PACIFIC BELL
310-276 Beverly Hills, CA PACIFIC BELL
310-277 Beverly Hills, CA PACIFIC BELL
310-278 Beverly Hills, CA PACIFIC BELL
310-279 Beverly Hills, CA PACIFIC BELL
310-280 Culver City, CA PACIFIC BELL
310-281 Beverly Hills, CA PACIFIC BELL
310-282 Beverly Hills, CA PACIFIC BELL
310-283 GARDENA, CA NEW CINGULAR WIRELESS PCS, LLC
310-284 Beverly Hills, CA PACIFIC BELL
310-285 Beverly Hills, CA PACIFIC BELL
310-286 Beverly Hills, CA PACIFIC BELL
310-287 Culver City, CA PACIFIC BELL
310-288 Beverly Hills, CA PACIFIC BELL
310-289 Beverly Hills, CA PACIFIC BELL
310-290 GARDENA, CA USA MOBILITY WIRELESS, INC.
310-291 GARDENA, CA NEW CINGULAR WIRELESS PCS, LLC
310-292 GARDENA, CA NEW CINGULAR WIRELESS PCS, LLC
310-293 GARDENA, CA NEW CINGULAR WIRELESS PCS, LLC
310-294 TORRANCE, CA BROADWING COMMUNICATIONS, LLC - CA
310-295 W ANGELES, CA BROADWING COMMUNICATIONS, LLC - CA
310-296 GARDENA, CA AMERICAN MESSAGING SERVICES, LLC
310-297 HAWTHORNE, CA PACIFIC BELL
310-298 GARDENA, CA USA MOBILITY WIRELESS, INC.
310-299 Beverly Hills, CA LEVEL 3 COMMUNICATIONS, LLC - CA
310-300 Beverly Hills, CA XO CALIFORNIA, 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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