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.

San Mateo, CA

<< 1 2 3 4 5 6 7 8 9 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
650-393 5 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
650-393 6 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-393 7 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-393 8 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-393 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-398 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-398 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-398 1 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
650-398 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-398 3 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
650-398 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-398 5 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-398 6 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-398 7 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-398 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-398 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-401 A BRLNCA01DS0  9740 PACIFIC BELL 722      
650-403 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-418 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-418 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-418 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-418 2 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
650-418 3 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-418 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-418 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-418 6 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-418 7 SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-418 8 OKLECAZVGT0  5562 METROPCS, INC. 722      
650-418 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-425 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-425 0 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-425 1   649C ONVOY, LLC - CA 722      
650-425 2 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-425 3 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-425 4 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-425 5 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-425 6 HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
650-425 7 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-425 8 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-425 9 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-430 A OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-431 A OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-431 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-431 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-431 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-431 3 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-431 4 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-431 5 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-431 6 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-431 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-431 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-431 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-432 A SNMTCA11DS0  9740 PACIFIC BELL 722      
650-435 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-435 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-435 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-435 2 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-435 3 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-435 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-435 5 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
650-435 6   515J IP HORIZON LLC 722      
650-435 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-435 8 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
650-435 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-436 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-436 0   515J IP HORIZON LLC 722      
650-436 1 OKLDCAMP1MD  4733 PAETEC COMMUNICATIONS, INC. - CA 722      
650-436 2 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-436 3 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-436 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-436 5 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-436 6 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-436 7 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-436 8 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-436 9 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-437 A SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-437 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-437 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-437 2 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
650-437 3 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-437 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-437 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-437 6 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-437 7 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-437 8 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-437 9 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-445 A OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-445 0 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-445 1 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-445 2 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-445 3 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-445 4 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-445 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-445 6 SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-445 7 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
650-445 8 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-445 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-458 A SNFCCAMMDS0  485E ASTOUND BROADBAND, LLC - CA 722      
650-458 0 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-458 1 OKLECAZVGT0  5562 METROPCS, INC. 722      

<< 1 2 3 4 5 6 7 8 9 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.