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.

Rancho Bernardo, CA

1 2 3 4 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
858-207 A SNDACA96DS0  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-207 0 SNDACA96DS0  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-207 1 SNDACA96DS0  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-207 2 SNDACA96DS0  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-207 3 SNDACAGLDS2  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-12-09   
858-207 4 SNDACAGLDS2  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-12-09   
858-207 5 SNDACA96DS0  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-207 6 SNDACAGLDS2  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2007-11-07   
858-207 7 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732   2005-12-17   
858-207 8 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732   2006-10-07   
858-207 9 SNDACA96DS0  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-217 A SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-217 0 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-217 1 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-217 2 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-217 3 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-217 4 SNDACAGLDS2  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2003-02-17   
858-217 5 SNDACAGLDS2  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2004-12-22   
858-217 6 SNDGCA0241Z  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 732   2007-01-10   
858-217 7 SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2023-09-01   
858-217 8 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-217 9 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-234 A SNDJCAHGDS0  7894 NORTH COUNTY COMMUNICATION CORPORATION - CA 732      
858-304 A SNDGCA07DS1  7421 AT&T - LOCAL 732      
858-304 0 SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2011-05-28   
858-304 1 SNDACAGLDS2  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2008-08-14   
858-304 2 SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2012-12-30   
858-304 3 SNDICAETDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 732   2005-07-23   
858-304 4 SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2005-07-23   
858-304 5 SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2005-07-23   
858-304 6 SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2005-07-23   
858-304 7 SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2012-12-30   
858-304 8 SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2012-12-30   
858-304 9 SNDGCA07DS1  7421 AT&T - LOCAL 732      
858-312 A SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732      
858-312 0 SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2015-07-10   
858-312 1 SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732      
858-312 2   829J PAETEC ITEL, LLC 732   2004-11-15   
858-312 3   829J PAETEC ITEL, LLC 732   2004-11-15   
858-312 4   829J PAETEC ITEL, LLC 732   2004-11-15   
858-312 5 SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732   2006-01-29   
858-312 6 SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732   2004-01-28   
858-312 7 SNDICAETDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 732   2007-04-04   
858-312 8 SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732   2008-03-22   
858-312 9 SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2016-03-24   
858-376 A SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-376 0   145J TERRA NOVA TELECOM INC. 732   2025-06-06   
858-376 1 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-376 2 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-376 3 SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2016-07-10   
858-376 4 SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2017-06-09   
858-376 5 SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2020-11-16   
858-376 6 SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732   2015-06-25   
858-376 7 SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2010-02-27   
858-376 8 SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732   2015-10-20   
858-376 9 SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2016-10-19   
858-385 A RBRNCA11DS0  9740 PACIFIC BELL 732      
858-421 A   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2025-03-10   
858-421 8   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2025-03-10   
858-421 9   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2025-03-10   
858-432 A SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-432 1 SNDGCA0241Z  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 732   2015-05-28   
858-432 2 SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2011-05-28   
858-432 3 SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2010-12-16   
858-432 4 SNDGCA0241Z  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 732   2012-03-13   
858-432 5 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732   2007-12-21   
858-432 6 SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2010-07-04   
858-432 7 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-432 8 SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2011-12-05   
858-432 9 SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2017-07-28   
858-451 A RBRNCA11DS0  9740 PACIFIC BELL 732      
858-451 0 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-451 1 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-451 2 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-451 3 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-451 4 SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2010-10-29   
858-451 5 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-451 6 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-451 7 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-451 8 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-451 9 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-472 A SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-472 0 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-472 1 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-472 2 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-472 3 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2002-09-23   
858-472 4 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-472 5 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-472 6 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-472 7 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-472 8 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2005-09-11   
858-472 9 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2006-03-09   
858-485 A RBRNCA11DS0  9740 PACIFIC BELL 732      
858-487 A RBRNCA11DS0  9740 PACIFIC BELL 732      
858-521 A RBRNCA11DS0  9740 PACIFIC BELL 732      
858-521 0 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-521 1 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-521 2 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-521 3 RBRNCA11DS0  9740 PACIFIC BELL 732      
858-521 4 RBRNCA11DS0  9740 PACIFIC BELL 732      

1 2 3 4 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.