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.

Sunnyvale, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
408-548 9 SNVACA11DS0  9740 PACIFIC BELL 722      
408-584 A SNVACA01DS1  9740 PACIFIC BELL 722      
408-585 A SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
408-585 0 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
408-585 1 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
408-585 2 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
408-585 3 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
408-585 4 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
408-585 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-10-11   
408-585 6 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
408-585 7 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
408-585 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2008-07-03   
408-585 9 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-09-09   
408-593 A   6529 T-MOBILE USA, INC. 722      
408-593 0   5562 METROPCS, INC. 722      
408-593 1 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
408-593 2 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
408-593 3 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
408-593 4 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
408-593 5 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
408-593 6 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
408-593 7 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
408-593 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
408-593 9 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
408-594 A   5562 METROPCS, INC. 722      
408-594 0   5562 METROPCS, INC. 722      
408-594 1 OKLECAZVGT0  5562 METROPCS, INC. 722      
408-594 2 OKLECAZVGT0  5562 METROPCS, INC. 722      
408-594 3 OKLECAZVGT0  5562 METROPCS, INC. 722      
408-594 4 OKLECAZVGT0  5562 METROPCS, INC. 722      
408-594 5 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-10-09   
408-594 6 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-05-20   
408-594 7 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2012-05-18   
408-594 8 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2008-07-03   
408-594 9 SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-10-09   
408-598 A HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722      
408-598 0 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2007-06-10   
408-598 1 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-07-03   
408-598 2 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-07-03   
408-598 3 SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2011-01-03   
408-598 4 SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2007-09-04   
408-598 5 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2007-08-06   
408-598 6 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2007-12-15   
408-598 7 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2007-08-11   
408-598 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2007-08-10   
408-598 9 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2007-09-06   
408-604 A FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722      
408-604 0 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-03-13   
408-604 1 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2012-03-10   
408-604 2 FRMTCAEDDS2  7262 XO CALIFORNIA, INC. 722   2012-03-10   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.