National Phone Number Registry NPNR

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

Phone Prefixes for Area Code 310

Page 4 of 16 — Previous   Next
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
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 4 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 FTC Complaint Assistant 1.3.88