National Phone Number Registry NPNR

(510)
Enter 7-digit phone number for area code 510 or the complete 10-digit phone number

Phone Prefixes for Area Code 510

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Area code Location Company / Service Provider
510-200 HAYWARD, CA METRO PCS, INC.
510-201 Oakland, CA PEERLESS NETWORK OF CALIFORNIA, LLC - CA
510-202 Oakland, CA AMERICAN MESSAGING SERVICES, LLC
510-203 FRNK MAIN, CA T-MOBILE USA, INC.
510-204 OAKLAND / BERKELEY, CA PACIFIC BELL
510-205 OAKLAND / ALAMEDA, CA SPRINT SPECTRUM L.P.
510-206 Oakland, CA NEW CINGULAR WIRELESS PCS, LLC
510-207 Oakland, CA NEW CINGULAR WIRELESS PCS, LLC
510-208 Oakland, CA PACIFIC BELL
510-209 HAYWARD, CA SPRINT SPECTRUM L.P.
510-210 RICHMOND, CA BANDWIDTH.COM CLEC, LLC - CA
510-212 FRNK OLIVR, CA USA MOBILITY WIRELESS, INC.
510-213 Oakland, CA T-MOBILE USA, INC.
510-214 OAKLAND / ALAMEDA, CA MCI WORLDCOM COMMUNICATIONS, INC., CA
510-215 RICHMOND, CA PACIFIC BELL
510-216 FRNK MAIN, CA USA MOBILITY WIRELESS, INC.
510-217 OAKLAND / ALAMEDA, CA TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO
510-218 FRNK OLIVR, CA USA MOBILITY WIRELESS, INC.
510-219 Oakland, CA NEW CINGULAR WIRELESS PCS, LLC
510-220 Oakland, CA NEW CINGULAR WIRELESS PCS, LLC
510-221 RICHMOND, CA SPRINT SPECTRUM L.P.
510-222 ELSBR-PINL, CA PACIFIC BELL
510-223 ELSBR-PINL, CA PACIFIC BELL
510-224 Hercules / Rodeo, CA SPRINT SPECTRUM L.P.
510-225 OAKLAND / BERKELEY, CA ALLEGIANCE TELECOM, INC. - CA
510-226 FRNK OLIVR, CA PACIFIC BELL
510-227 OAKLAND / ALAMEDA, CA LEVEL 3 TELECOM OF CALIFORNIA, LP - CA
510-228 Oakland, CA TNCI-OP-CO - CA
510-229 OAKLAND / BERKELEY, CA PACIFIC BELL
510-230 RICHMOND, CA T-MOBILE USA, INC.
510-231 RICHMOND, CA PACIFIC BELL
510-232 RICHMOND, CA PACIFIC BELL
510-233 RICHMOND, CA PACIFIC BELL
510-234 RICHMOND, CA PACIFIC BELL
510-235 RICHMOND, CA PACIFIC BELL
510-236 RICHMOND, CA PACIFIC BELL
510-237 RICHMOND, CA PACIFIC BELL
510-238 Oakland, CA PACIFIC BELL
510-239 OAKLAND / ALAMEDA, CA MPOWER COMMUNICATIONS CORP - CA
510-240 FRNK GRNLF, CA LEVEL 3 TELECOM OF CALIFORNIA, LP - CA
510-241 ELSBR-PINL, CA T-MOBILE USA, INC.
510-242 RICHMOND, CA PACIFIC BELL
510-243 ELSBR-PINL, CA PACIFIC BELL
510-244 HAYWARD, CA BANDWIDTH.COM CLEC, LLC - CA
510-245 Hercules / Rodeo, CA PACIFIC BELL
510-246 HAYWARD, CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-247 HAYWARD, CA PACIFIC BELL
510-248 FRNK MAIN, CA TNCI-OP-CO - CA
510-249 FRNK OLIVR, CA PACIFIC BELL
510-250 Oakland, CA BROADWING COMMUNICATIONS, LLC - CA
New numbers being added to 510 area code
Effective: 06/11/2017
510-561 in OAKLAND, CA
NEW CINGULAR WIRELESS PCS, LLC
Effective: 06/01/2017
510-602 in FRNK MAIN, CA
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510 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: September 02, 1991
In jeopardy: No
Relief in progress: Yes
NPA Relief status: Active
Code assignable: Yes
Geographic or
non-geographic:
G
Reserved for future use: No
Planning letter(s): 413 206 190 IL90/06-023
Overlay code: No
Overlay complex:
Dialing plan Standard Permissive
Home local calls: 7D 1+10D
Foreign local calls: 1+10D NA
Home toll calls: 7D 1+10D
Foreign toll calls: 1+10D -

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