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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-200 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-201 A Bakersfield: Main DA CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      
661-202 A Palmdale: Palmdale DA CA ONTRCAFXDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730      
661-203 A Bakersfield: Main DA CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734      
661-204 A Bakersfield: Main DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-205 A Bakersfield: Main DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-206 A Lancaster CA   829J PAETEC ITEL, LLC 730      
661-207 A Santa Clarita: Newhall-Castaic DA CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-208 A Palmdale: Palmdale DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
661-209 A Palmdale: Agua Dulce DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
661-210 A Santa Clarita: Newhall-Castaic DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-212 A Santa Clarita: Saugus Canyon Country DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
661-213 A Bakersfield: North DA CA BKFDCA01X2X  5562 METROPCS, INC. 734      
661-214 A Lost Hills CA BKFDCA119MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 734      
661-215 A Bakersfield: North DA CA BKFDCA11GMD  649C ONVOY, LLC - CA 734      
661-216 A Lancaster CA LSANCA039MD  6906 AMERICAN MESSAGING SERVICES, LLC 730      
661-217 A Buttonwillow CA BKFDCA11EMD  6906 AMERICAN MESSAGING SERVICES, LLC 734      
661-218 A Bakersfield: North DA CA BKFECANDGT0  337E BRIGHT HOUSE NTWS INFORMATION SVCS (CALIFORNIA) CA 734      
661-219 A Santa Clarita: Newhall-Castaic DA CA IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
661-220 A Arvin CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      
661-221 A Mojave CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      
661-222 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-223 A Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-224 A Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-225 A Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-226 A Arvin CA BKFDCA11EMD  6906 AMERICAN MESSAGING SERVICES, LLC 734      
661-227 A Palmdale: Palmdale DA CA TRNECAGB7MD  899D METROPCS NETWORKS, LLC 730      
661-228 A Hi Vista CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730      
661-229 A Delano CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-230 A Edwards CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-231 A Lebec CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-232 A Mojave CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      
661-233 A Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-234 A Palmdale: Palmdale DA CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
661-235 A Rosamond CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-236 A Palmdale: Palmdale DA CA PLDLCA11DS0  9740 PACIFIC BELL 730      
661-237 A Shafter CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-238 A Tehachapi CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-239 A Walker Basin CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-240 A Wasco CA   515J IP HORIZON LLC 734      
661-241 A Bakersfield: South DA CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-242 A Lebec CA LEBCCA12RS0  9740 PACIFIC BELL 734      
661-243 A Bakersfield: North DA CA BKFDCA11EMD  981E BANDWIDTH.COM CLEC, LLC - CA 734      
661-244 A Santa Clarita: Newhall-Castaic DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
661-245 A Lebec CA FZPKCA11RS0  9740 PACIFIC BELL 734      
661-246 A Bakersfield: Main DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-247 A Arvin CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      
661-248 A Lebec CA LEBCCA11RS0  9740 PACIFIC BELL 734      
661-249 A Big Butte CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
661-250 A Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-251 A Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-252 A Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-253 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-254 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-255 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-256 A Rosamond CA RSMDCA11RS3  9740 PACIFIC BELL 734      
661-257 A Santa Clarita: Newhall-Castaic DA CA CSTCCA11DS0  9740 PACIFIC BELL 730      
661-258 A Edwards CA EDWRCA01RS1  9740 PACIFIC BELL 734      
661-259 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-260 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-261 A Big Butte CA LKLACA11DS1  9740 PACIFIC BELL 730      
661-262 A Lake Hughes CA   515J IP HORIZON LLC 730      
661-263 A Santa Clarita: Saugus Canyon Country DA CA SAGSCA11DS0  9740 PACIFIC BELL 730      
661-264 A Palmdale: Palmdale DA CA LKLACA11DS1  9740 PACIFIC BELL 730      
661-265 A Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-266 A Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-267 A Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-268 A Palmdale: Agua Dulce DA CA AGDLCA11RS0  9740 PACIFIC BELL 730      
661-269 A Palmdale: Palmdale DA CA ACTNCA11RS1  9740 PACIFIC BELL 730      
661-270 A Palmdale: Leona Valley DA CA LNVYCA11RS0  9740 PACIFIC BELL 730      
661-271 A Mojave CA BKFDCA12DS1  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 734      
661-272 A Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-273 A Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-274 A Palmdale: Palmdale DA CA PLDLCA01DS0  9740 PACIFIC BELL 730      
661-275 A Edwards CA EDWRCA01RS1  9740 PACIFIC BELL 734      
661-276 A Edwards CA EDWRCA01RS1  9740 PACIFIC BELL 734      
661-277 A Edwards CA EDWRCA01RS1  9740 PACIFIC BELL 734      
661-278 A Edwards CA BKFDCA12DS1  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 734      
661-279 A Rosamond CA BKFDCA12DS1  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 734      
661-280 A Palmdale: Leona Valley DA CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-281 A Bakersfield: Main DA CA BKFDCAJADS0  7128 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 734      
661-282 A Bakersfield: South DA CA BKFDCAJADS0  7128 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 734      
661-283 A Bakersfield: Main DA CA BKFDCA12XPX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 734      
661-284 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-285 A Palmdale: Palmdale DA CA PLDLCA11DS0  9740 PACIFIC BELL 730      
661-286 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-287 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-288 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-289 A Lebec CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734      
661-290 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-291 A Santa Clarita: Newhall-Castaic DA CA NHLLCA01DS0  9740 PACIFIC BELL 730      
661-292 A Shafter CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      
661-293 A Taft CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      
661-294 A Santa Clarita: Newhall-Castaic DA CA CSTCCA11DS0  9740 PACIFIC BELL 730      
661-295 A Santa Clarita: Newhall-Castaic DA CA CSTCCA11DS0  9740 PACIFIC BELL 730      
661-296 A Santa Clarita: Saugus Canyon Country DA CA SAGSCA11DS0  9740 PACIFIC BELL 730      
661-297 A Santa Clarita: Saugus Canyon Country DA CA SAGSCA11DS0  9740 PACIFIC BELL 730      
661-298 A Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-299 A Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-300 A Tehachapi CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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