Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

Block: A

1 2 3 4 5 6 7 8 9 10 11 12 13 14 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-200 A San Mateo CA SNFCCAMMDSA  4129 O1 COMMUNICATIONS, INC. - CA 722      
650-201 A South San Francisco CA OKLECAZVGT0  6664 SPRINT SPECTRUM, L.P. 722      
650-202 A San Mateo CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
650-203 A Mountain View CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-204 A Millbrae CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-205 A South San Francisco CA SNFCCA21XUY  6630 USA MOBILITY WIRELESS, INC. 722      
650-206 A Woodside CA SNJUCA10DS0  8322 MPOWER COMMUNICATIONS CORP. - CA 722      
650-207 A Redwood City CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-208 A Redwood City CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-209 A Los Altos CA SNJSCAYBDS0  7453 US TELEPACIFIC CORP. - CA 722      
650-210 A Mountain View CA MTVWCA11DS1  9740 PACIFIC BELL 722      
650-212 A San Mateo CA SNMTCA11DS0  9740 PACIFIC BELL 722      
650-213 A Palo Alto CA PLALCA12DS0  9740 PACIFIC BELL 722      
650-214 A Mountain View CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
650-215 A Mountain View CA SNFCCAMK8MD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 722      
650-216 A Redwood City CA RDCYCA01DS0  9740 PACIFIC BELL 722      
650-217 A San Mateo CA SNJUCACLDS1  6630 USA MOBILITY WIRELESS, INC. 722      
650-218 A San Mateo CA OKLECAZVGT0  6664 SPRINT SPECTRUM, L.P. 722      
650-219 A South San Francisco CA OKLECAZVGT0  6664 SPRINT SPECTRUM, L.P. 722      
650-220 A San Mateo CA SNFCCAMKX1X  9748 AMERICAN MESSAGING SERVICES, LLC 722      
650-221 A Redwood City CA SNFCCAMKX1X  6906 AMERICAN MESSAGING SERVICES, LLC 722      
650-222 A San Mateo CA OKLECAZVGT0  6664 SPRINT SPECTRUM, L.P. 722      
650-223 A Palo Alto CA SNJUCA10DS0  8322 MPOWER COMMUNICATIONS CORP. - CA 722      
650-224 A Mountain View CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-225 A South San Francisco CA SNBUCA02DS0  9740 PACIFIC BELL 722      
650-226 A San Carlos-Belmont CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
650-227 A San Mateo CA FRMTCAEDDS0  7262 XO CALIFORNIA, INC. 722      
650-228 A South San Francisco CA FRMTCAEDDS0  7262 XO CALIFORNIA, INC. 722      
650-229 A Los Altos CA FRMTCAEDDS0  7262 XO CALIFORNIA, INC. 722      
650-230 A Mountain View CA FRMTCAEDDS0  7262 XO CALIFORNIA, INC. 722      
650-231 A Millbrae CA FRMTCAEDDS0  7262 XO CALIFORNIA, INC. 722      
650-232 A San Carlos-Belmont CA FRMTCAEDDS0  7262 XO CALIFORNIA, INC. 722      
650-233 A Palo Alto CA MNPKCA11DS0  9740 PACIFIC BELL 722      
650-234 A Palo Alto CA MNPKCA11DS0  9740 PACIFIC BELL 722      
650-235 A San Mateo CA HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-236 A Palo Alto CA PLALCA12DS0  9740 PACIFIC BELL 722      
650-237 A Mountain View CA MTVWCA11DS0  9740 PACIFIC BELL 722      
650-238 A South San Francisco CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
650-239 A Millbrae CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-240 A San Mateo CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-241 A Redwood City CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-242 A San Mateo CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-243 A South San Francisco CA SNJSCAYBDS0  7453 US TELEPACIFIC CORP. - CA 722      
650-244 A South San Francisco CA SNBUCA02DS1  9740 PACIFIC BELL 722      
650-245 A San Mateo CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-246 A South San Francisco CA SNBUCA02DS1  9740 PACIFIC BELL 722      
650-247 A Palo Alto CA SNFCCAMKX1X  6906 AMERICAN MESSAGING SERVICES, LLC 722      
650-248 A Palo Alto CA OKLECAZVGT0  6664 SPRINT SPECTRUM, L.P. 722      
650-249 A Redwood City CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-250 A Palo Alto CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      

1 2 3 4 5 6 7 8 9 10 11 12 13 14 >>

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.