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.

Palo Alto, CA

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
650-334 7 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-334 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-334 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-352 A SNFCCAMK8MD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 722      
650-352 0 SNFCCAMK8MD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 722      
650-352 1 SNFCCAMK8MD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 722      
650-352 2 SNFCCAMK8MD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 722      
650-352 3 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-352 4 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-352 5 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-352 6 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-352 7 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-352 8 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-352 9 SNFCCAMK8MD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 722      
650-353 A SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-353 0 SNFDCACVCM7  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-353 1 SNFDCACVCM7  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-353 2 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-353 3 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-353 4 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-353 5 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-353 6 SNFDCACVCM7  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-353 7 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-353 8 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-353 9 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-354 A PLALCA12DS0  9740 PACIFIC BELL 722      
650-370 A   981E BANDWIDTH.COM CLEC, LLC - CA 722   2024-12-06   
650-370 0   981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-370 1   981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-370 2   981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-374 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-374 0 SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
650-374 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-374 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-374 3   624H ONVOY SPECTRUM, LLC 722      
650-374 4 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-374 5 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-374 6 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-374 7 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-374 8 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-374 9 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-380 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-380 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-380 1 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-380 2 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-380 3 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-380 4 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-380 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-380 6 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-380 7 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-380 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-380 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-382 A OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-382 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-382 1 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-382 2 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-382 3 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-382 4 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
650-382 5 SNJSCA02DS4  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-382 6 OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-382 7 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-382 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-382 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-384 A SNJSCA02DS4  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-384 0 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-384 1   6529 T-MOBILE USA, INC. 722      
650-384 2 OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-384 3 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-384 4 SNJSCA02DS4  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722      
650-384 5 SNFDCACVCM7  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-384 6 SNFCCA01XGX  516C AT&T CORP. 722      
650-384 7 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-384 8 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-384 9 SNFDCACVCM7  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-387 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-388 A HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-388 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-388 1 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-388 2 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-388 3 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-388 4 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-388 5 SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722      
650-388 6 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-388 7 HYWRCA115MD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 722      
650-388 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-388 9 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-391 A OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-391 0 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-391 1 OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-391 2 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-391 3 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-391 4 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-391 5 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-391 6 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-391 7 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-391 8 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-391 9 OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
650-407 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-407 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
650-407 1 SNFCCAMKDS3  649C ONVOY, LLC - CA 722      

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

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.