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: 628 [Rate centres in NPA 628] [Dial plan for NPA 628]

Block: A

<< 1 2 3 4 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
628-251 A San Francisco: Central DA CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
628-252 A Corte Madera CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
628-253 A San Rafael CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
628-254 A Sausalito CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
628-255 A San Francisco: Central DA CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
628-256 A San Francisco: Montrose-Evergreen DA CA SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722      
628-257 A Mill Valley CA SNFCCAMM8MD  973E RACE TELECOMMUNICATIONS, INC. - CA 722      
628-258 A Nicasio CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
628-259 A Ignacio CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
628-260 A San Francisco: Central DA CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
628-261 A Sausalito CA SNJUCACL8MD  145J TERRA NOVA TELECOM INC. 722      
628-262 A Belvedere CA SNFCCAMKX0X  114J EXIANT COMMUNICATIONS LLC 722      
628-263 A San Francisco: Central DA CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
628-264 A San Francisco: Central DA CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
628-265 A Inverness CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
628-266 A Corte Madera CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
628-267 A San Francisco: Central DA CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
628-268 A San Francisco: Central DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
628-269 A San Rafael CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
628-270 A San Francisco: Montrose-Evergreen DA CA SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722      
628-271 A San Francisco: Central DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722      
628-272 A Point Reyes CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
628-273 A San Francisco: Central DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
628-274 A San Francisco: Central DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
628-275 A San Francisco: Central DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
628-276 A San Francisco: Central DA CA SNFCCA21XPZ  553J WHITESKY COMMUNICATIONS, LLC 722      
628-277 A San Rafael CA SNJUCACL3MD  073H TELNYX LLC 722      
628-278 A San Francisco: Montrose-Evergreen DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
628-279 A Sausalito CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
628-280 A San Francisco: Montrose-Evergreen DA CA SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722      
628-281 A San Francisco: Central DA CA SNFCCAMKXIY  732J NUSO, LLC 722      
628-282 A San Francisco: Juniper DA CA SNFCCA21DS3  7421 AT&T - LOCAL 722      
628-283 A San Francisco: Montrose-Evergreen DA CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
628-284 A San Francisco: Central DA CA OKLDCAMP1MD  4733 PAETEC COMMUNICATIONS, INC. - CA 722      
628-285 A San Rafael CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
628-286 A San Francisco: Montrose-Evergreen DA CA SNFCCA21XCZ  252F WIDE VOICE, LLC - CA 722      
628-287 A San Francisco: Central DA CA SNJUCACLIMD  598J FIVE9, INC. 722      
628-288 A Mill Valley CA SNJUCACL7MD  965H FRACTEL, LLC 722      
628-289 A San Francisco: Central DA CA SNJUCACLKMD  598J FIVE9, INC. 722      
628-290 A San Francisco: Juniper DA CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
628-291 A Mill Valley CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
628-292 A Belvedere CA SNJUCACL4MD  939H COMMIO, LLC 722      
628-293 A Nicasio CA SNJUCACL4MD  939H COMMIO, LLC 722      
628-294 A Novato CA CNCRCADOCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
628-295 A San Rafael CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
628-296 A San Francisco: Montrose-Evergreen DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
628-297 A San Francisco: Montrose-Evergreen DA CA   6529 T-MOBILE USA, INC. 722   2024-04-25   
628-298 A San Francisco: Juniper DA CA   6529 T-MOBILE USA, INC. 722   2024-04-21   
628-299 A San Francisco: Juniper DA CA SNJUCACL7MD  965H FRACTEL, LLC 722      
628-300 A San Francisco: Central DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      

<< 1 2 3 4 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.