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
310-965 GARDENA, CA PACIFIC BELL
310-966 W ANGELES, CA FRONTIER CALIFORNIA INC.
310-967 Beverly Hills, CA PACIFIC BELL
310-968 Santa Monica / Mar Vista, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-969 Beverly Hills, CA TELEPORT COMMUNICATIONS GROUP - LOS ANGELES
310-970 HAWTHORNE, CA PACIFIC BELL
310-971 SAN PEDRO, CA MCI WORLDCOM COMMUNICATIONS, INC., CA
310-972 TORRANCE, CA PACIFIC BELL
310-973 HAWTHORNE, CA PACIFIC BELL
310-974 TORRANCE, CA MCI WORLDCOM COMMUNICATIONS, INC., CA
310-975 Beverly Hills, CA MCI WORLDCOM COMMUNICATIONS, INC., CA
310-976 Beverly Hills, CA NORTH COUNTY COMMUNICATIONS CORP. - CA
310-977 GARDENA, CA NEW CINGULAR WIRELESS PCS, LLC
310-978 HAWTHORNE, CA PACIFIC BELL
310-979 W ANGELES, CA FRONTIER CALIFORNIA INC.
310-980 Santa Monica, CA T-MOBILE USA, INC.
310-981 INGLEWOOD, CA AT&T LOCAL
310-982 SAN PEDRO, CA SPRINT SPECTRUM L.P.
310-983 W ANGELES, CA PACIFIC BELL - CLEC
310-984 SAN PEDRO, CA BROADWING COMMUNICATIONS, LLC - CA
310-985 Santa Monica, CA T-MOBILE USA, INC.
310-986 LOMITA, CA T-MOBILE USA, INC.
310-987 SAN PEDRO, CA SPRINT SPECTRUM L.P.
310-988 INGLEWOOD, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-989 GARDENA, CA NEW CINGULAR WIRELESS PCS, LLC
310-990 Beverly Hills, CA NEW CINGULAR WIRELESS PCS, LLC
310-991 GARDENA, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-992 Santa Monica, CA USA MOBILITY WIRELESS, INC.
310-993 Beverly Hills, CA NEW CINGULAR WIRELESS PCS, LLC
310-994 Beverly Hills, CA NEW CINGULAR WIRELESS PCS, LLC
310-995 GARDENA, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-996 W ANGELES, CA FRONTIER CALIFORNIA INC.
310-997 LOMITA, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
310-998 Santa Monica, CA FRONTIER CALIFORNIA INC.
310-999 GARDENA, CA TNCI-OP-CO - CA
310-211 California
310-311 California
310-411 California
310-511 California
310-520 California PACIFIC BELL
310-555 GRDN0386T, CA MULTIPLE OCN LISTING
310-611 California
310-700 California
310-711 California
310-811 California
310-911 California
310-950 California
310-958 California
310-959 California
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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