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Area Codes > 510 > Central Office Codes

Exchange Rate Center State Operating Company
510-202 OKLD MN-PD CA AMERICAN MESSAGING (AM), INC.
510-204 OKLD BKLY CA PACIFIC BELL
510-205 OKLD ALMD CA SPRINT SPECTRUM L.P.
510-206 OKLD MN-PD CA BLUE LICENSES HOLDING, LLC
510-207 OKLD MN-PD CA BLUE LICENSES HOLDING, LLC
510-208 OKLD MN-PD CA PACIFIC BELL
510-209 HAYWARD CA SPRINT SPECTRUM L.P.
510-211 CA
510-212 FRNK OLIVR CA ARCH WIRELESS HOLDINGS, INC.
510-213 OKLD FRTVL CA T-MOBILE USA, INC.
510-214 OKLD ALMD CA MCI WORLDCOM COMMUNICATIONS, INC., CA
510-215 RICHMOND CA PACIFIC BELL
510-216 FRNK MAIN CA ARCH WIRELESS HOLDINGS, INC.
510-217 OKLD ALMD CA TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO
510-218 FRNK OLIVR CA ARCH WIRELESS HOLDINGS, INC.
510-219 OKLD MN-PD CA BLUE LICENSES HOLDING, LLC
510-220 OKLD MN-PD CA BLUE LICENSES HOLDING, 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 HRCUL-RODE CA NEXTEL COMMUNICATIONS, INC.
510-225 OKLD BKLY CA ALLEGIANCE TELECOM, INC. - CA
510-226 FRNK OLIVR CA PACIFIC BELL
510-227 OKLD ALMD CA TIME WARNER TELECOM OF CALIFORNIA, L.P.
510-228 OKLD FRTVL CA PAC - WEST TELECOMM, INC.
510-229 OKLD BKLY 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 OKLD MN-PD CA PACIFIC BELL
510-239 OKLD ALMD CA MPOWER COMMUNICATIONS CORP. - CA
510-240 FRNK GRNLF CA TIME WARNER TELECOM OF CALIFORNIA, L.P.
510-241 OKLD ALMD CA NETWORK SERVICES LLC
510-242 RICHMOND CA PACIFIC BELL
510-243 ELSBR-PINL CA PACIFIC BELL
510-245 HRCUL-RODE CA PACIFIC BELL
510-247 HAYWARD CA PACIFIC BELL
510-248 FRNK MAIN CA PAC - WEST TELECOMM, INC.
510-249 FRNK OLIVR CA PACIFIC BELL
510-250 OKLD MN-PD CA BROADWING COMMUNICATINS. LLC - CA
510-251 OKLD MN-PD CA PACIFIC BELL
510-252 FRNK OLIVR CA PACIFIC BELL
510-253 RICHMOND CA TIME WARNER TELECOM OF CALIFORNIA, L.P.
510-256 CROCKETT CA 01 COMMUNICATIONS, INC. - CA
510-257 FRNK OLIVR CA TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO
510-258 HAYWARD CA PACIFIC BELL
510-259 HAYWARD CA PACIFIC BELL
510-260 RICHMOND CA COMCAST PHONE OF CALIFORNIA, LLC - CA
510-261 OKLD FRTVL CA PACIFIC BELL
510-262 ELSBR-PINL CA PACIFIC BELL
510-263 OKLD ALMD CA PACIFIC BELL
510-264 HAYWARD CA PACIFIC BELL
510-265 HAYWARD CA PACIFIC BELL
510-266 HAYWARD CA PACIFIC BELL
510-267 OKLD MN-PD CA PACIFIC BELL
510-268 OKLD MN-PD CA PACIFIC BELL
510-269 OKLD FRTVL CA MCI WORLDCOM COMMUNICATIONS, INC., CA
510-270 FRNK OLIVR CA BROOKS FIBER COMMUNICATIONS - CALIFORNIA
510-271 OKLD MN-PD CA PACIFIC BELL
510-272 OKLD MN-PD CA PACIFIC BELL
510-273 OKLD MN-PD CA PACIFIC BELL
510-274 HAYWARD CA COMMPARTNERS, LLC - CA
510-275 ELSBR-PINL CA PAC - WEST TELECOMM, INC.
510-276 HAYWARD CA PACIFIC BELL
510-277 OKLD BKLY CA GLOBAL CROSSING LOCAL SERVICES, INC.-CA
510-278 HAYWARD CA PACIFIC BELL
510-279 FRNK OLIVR CA PAC - WEST TELECOMM, INC.
510-280 OKLD BKLY CA XO CALIFORNIA, INC.
510-281 OKLD MN-PD CA PAC - WEST TELECOMM, INC.
510-282 OKLD MN-PD CA T-MOBILE USA, INC.
510-283 ELSBR-PINL CA ALLEGIANCE TELECOM, INC. - CA
510-284 FRNK MAIN CA PACIFIC BELL
510-285 OKLD MN-PD CA MCI WORLDCOM COMMUNICATIONS, INC., CA
510-286 OKLD MN-PD CA PACIFIC BELL
510-287 OKLD MN-PD CA PACIFIC BELL
510-288 OKLD MN-PD CA PAC - WEST TELECOMM, INC.
510-289 OKLD MN-PD CA BLUE LICENSES HOLDING, LLC
510-290 OKLD MN-PD CA SPRINT SPECTRUM L.P.
510-291 OKLD MN-PD CA PAC - WEST TELECOMM, INC.
510-292 OKLD BKLY CA PACIFIC BELL
510-293 HAYWARD CA PACIFIC BELL
510-295 OKLD BKLY CA PAC - WEST TELECOMM, INC.
510-296 HRCUL-RODE CA LEVEL 3 COMMUNICATIONS, LLC - CA
510-297 OKLD TRNID CA PACIFIC BELL
510-299 FRNK MAIN CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-300 HAYWARD CA U.S. TELEPACIFIC CORP. - CA
510-301 OKLD MN-PD CA CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
510-302 OKLD MN-PD CA PACIFIC BELL
510-303 HAYWARD CA BLUE LICENSES HOLDING, LLC
510-304 FRNK MAIN CA BLUE LICENSES HOLDING, LLC
510-305 HAYWARD CA BLUE LICENSES HOLDING, LLC
510-306 OKLD ALMD CA SPRINT SPECTRUM L.P.
510-307 RICHMOND CA PACIFIC BELL
510-308 OKLD MN-PD CA ARCH WIRELESS HOLDINGS, INC.
510-309 ELSBR-PINL CA ARCH WIRELESS HOLDINGS, INC.