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
650-458 2 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-458 3 SNFCCAMMDS0  485E ASTOUND BROADBAND, LLC - CA 722      
650-458 4 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-458 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-458 6 SNFCCAMMDS0  485E ASTOUND BROADBAND, LLC - CA 722      
650-458 7 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-458 8 SNFCCAMMDS0  485E ASTOUND BROADBAND, LLC - CA 722      
650-458 9 SNFCCAMMDS0  485E ASTOUND BROADBAND, LLC - CA 722      
650-477 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-477 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-477 1   649C ONVOY, LLC - CA 722      
650-477 2 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
650-477 3   649C ONVOY, LLC - CA 722      
650-477 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-477 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-477 6 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-477 7 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-477 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-477 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-483 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-484 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-484 0 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
650-484 1 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
650-484 2 SNFCCAMM8MD  973E RACE TELECOMMUNICATIONS, INC. - CA 722      
650-484 3 HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
650-484 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-484 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-484 6 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-484 7 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-484 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-484 9 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-504 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-513 A SNMTCA11DS0  9740 PACIFIC BELL 722      
650-513 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-513 1 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
650-513 2 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-513 3 SNMTCA11DS0  9740 PACIFIC BELL 722      
650-513 4 SNMTCA11DS0  9740 PACIFIC BELL 722      
650-513 5 SNMTCA11DS0  9740 PACIFIC BELL 722      
650-513 6 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
650-513 7 SNMTCA11DS0  9740 PACIFIC BELL 722      
650-513 8 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-513 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-514 A SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-514 0 OKLECAZVGT0  5562 METROPCS, INC. 722      
650-514 1 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-514 2 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-514 3 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-514 4 SNJUCACL2MD  197D VONAGE AMERICA LLC 722      
650-514 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-514 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-514 7 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
650-514 8 SNJUCACL2MD  197D VONAGE AMERICA LLC 722      
650-514 9 SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722      
650-520 A   6529 T-MOBILE USA, INC. 722      
650-520 0 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-520 1 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-520 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-520 3 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-520 4 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-520 5 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-520 6 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-520 7 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-520 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-520 9   5562 METROPCS, INC. 722      
650-522 A SNMTCA11DS1  9740 PACIFIC BELL 722      
650-522 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-522 1 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-522 2 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-522 3 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
650-522 4 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-522 5 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-522 6 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-522 7 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-522 8 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-522 9 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-523 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-524 A SNMTCA11DS1  9740 PACIFIC BELL 722      
650-524 0 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-524 1 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-524 2 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-524 3 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-524 4 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-524 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-524 6 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-524 7 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-524 8 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-524 9 SNMTCA11DS1  9740 PACIFIC BELL 722      
650-525 A SNMTCA11DS0  9740 PACIFIC BELL 722      
650-525 0 SNMTCA11DS0  9740 PACIFIC BELL 722      
650-525 1 SNMTCA11DS0  9740 PACIFIC BELL 722      
650-525 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-525 3 SNMTCA11DS0  9740 PACIFIC BELL 722      
650-525 4 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-525 5 SNMTCA11DS0  9740 PACIFIC BELL 722      
650-525 6 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-525 7 SNMTCA11DS0  9740 PACIFIC BELL 722      
650-525 8 SNMTCA11DS0  9740 PACIFIC BELL 722      
650-525 9 SNMTCA11DS0  9740 PACIFIC BELL 722      
650-532 A SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      

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

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.