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

Page 3 of 16 — Previous   Next
Area code Location Company / Service Provider
310-301 Santa Monica / Mar Vista, CA FRONTIER CALIFORNIA INC.
310-302 Santa Monica / Mar Vista, CA FRONTIER CALIFORNIA INC.
310-303 REDONDO, CA PACIFIC BELL - CLEC
310-304 HAWTHORNE, CA AMERICAN MESSAGING SERVICES, LLC
310-305 Santa Monica / Mar Vista, CA FRONTIER CALIFORNIA INC.
310-306 Santa Monica / Mar Vista, CA FRONTIER CALIFORNIA INC.
310-307 W ANGELES, CA T-MOBILE USA, INC.
310-308 GARDENA, CA NEW CINGULAR WIRELESS PCS, LLC
310-309 Santa Monica, CA TELEPORT COMMUNICATIONS GROUP - LOS ANGELES
310-310 Santa Monica, CA T-MOBILE USA, INC.
310-312 W ANGELES, CA FRONTIER CALIFORNIA INC.
310-313 Santa Monica / Mar Vista, CA FRONTIER CALIFORNIA INC.
310-314 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-315 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-316 REDONDO, CA FRONTIER CALIFORNIA INC.
310-317 MALIBU, CA FRONTIER CALIFORNIA INC.
310-318 REDONDO, CA FRONTIER CALIFORNIA INC.
310-319 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-320 TORRANCE, CA PACIFIC BELL
310-321 EL SEGUNDO, CA MPOWER COMMUNICATIONS CORP - CA
310-322 EL SEGUNDO, CA PACIFIC BELL
310-323 GARDENA, CA PACIFIC BELL
310-324 GARDENA, CA PACIFIC BELL
310-325 LOMITA, CA PACIFIC BELL
310-326 LOMITA, CA PACIFIC BELL
310-327 GARDENA, CA PACIFIC BELL
310-328 TORRANCE, CA PACIFIC BELL
310-329 GARDENA, CA PACIFIC BELL
310-330 INGLEWOOD, CA PACIFIC BELL
310-331 HAWTHORNE, CA PACIFIC BELL
310-332 HAWTHORNE, CA PACIFIC BELL
310-333 EL SEGUNDO, CA PACIFIC BELL
310-334 EL SEGUNDO, CA PACIFIC BELL
310-335 EL SEGUNDO, CA PACIFIC BELL
310-336 EL SEGUNDO, CA PACIFIC BELL
310-337 INGLEWOOD, CA PACIFIC BELL
310-338 INGLEWOOD, CA PACIFIC BELL
310-339 Santa Monica / Mar Vista, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-340 HAWTHORNE, CA NEW CINGULAR WIRELESS PCS, LLC
310-341 EL SEGUNDO, CA TELEPORT COMMUNICATIONS GROUP - LOS ANGELES
310-342 INGLEWOOD, CA PACIFIC BELL
310-343 EL SEGUNDO, CA TELEPORT COMMUNICATIONS GROUP - LOS ANGELES
310-344 GARDENA, CA NEW CINGULAR WIRELESS PCS, LLC
310-345 GARDENA, CA SPRINT SPECTRUM L.P.
310-346 GARDENA, CA SPRINT SPECTRUM L.P.
310-347 TORRANCE, CA NEW CINGULAR WIRELESS PCS, LLC
310-348 INGLEWOOD, CA PACIFIC BELL
310-349 HAWTHORNE, CA PACIFIC BELL
310-350 TORRANCE, CA SPRINT SPECTRUM L.P.
310-351 Santa Monica / Mar Vista, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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 -
Page 3 of 16

Home   ·   Area Codes   ·   News & Info
Some useful links:
National Do Not Call Registry FTC - Cell Phones and the Do Not Call Registry FCC - Do Not Call List FTC Complaint Assistant 1.3.86