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 Diego: Mira Mesa DA, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
858-790 3 SNDACA96DS0  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-790 4 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2013-11-18   
858-790 5 SNDACA96DS0  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-790 6 SNDACA96DS0  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-790 7 SNDACA96DS0  7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732      
858-790 8 SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2010-12-16   
858-790 9 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2010-10-16   
858-800 A SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732      
858-800 0 SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2011-10-28   
858-800 1 SNDGCA0241Z  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 732   2012-04-08   
858-800 2 SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2012-04-19   
858-800 3 SNDACAGLDS2  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2012-08-27   
858-800 4 SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2013-02-24   
858-800 5 SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732   2012-05-24   
858-800 6 SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732   2012-09-05   
858-800 7 SNDGCA0241Z  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 732   2013-07-11   
858-800 8 SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2011-10-28   
858-800 9 SNDGCA0260Z  624H ONVOY SPECTRUM, LLC 732   2021-07-19   
858-805 A SNDHCAAXJMD  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 732      
858-805 0 SNDHCAAXJMD  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 732      
858-805 1 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2007-09-08   
858-805 2 SNDHCAAXJMD  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 732   2005-05-21   
858-805 3 SNDHCAAXJMD  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 732   2005-05-21   
858-805 4 SNDHCAAXJMD  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 732   2005-05-21   
858-805 5 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2007-10-16   
858-805 6 SNDHCAAXJMD  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 732      
858-805 7 SNDHCAAXJMD  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 732      
858-805 8 SNDHCAAXJMD  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 732   2005-05-21   
858-805 9 SNDHCAAXJMD  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 732   2005-05-21   
858-831 A SNDGCA16DS0  9740 PACIFIC BELL 732      
858-831 0 SNDGCA16DS0  9740 PACIFIC BELL 732      
858-831 1 SNDGCA16DS0  9740 PACIFIC BELL 732      
858-831 2 SNDGCA16DS0  9740 PACIFIC BELL 732      
858-831 3 SNDGCA16DS0  9740 PACIFIC BELL 732      
858-831 4 SNDGCA16DS0  9740 PACIFIC BELL 732      
858-831 5 SNDGCA16DS0  9740 PACIFIC BELL 732      
858-831 6 SNDGCA16DS0  9740 PACIFIC BELL 732      
858-831 7 SNDGCA16DS0  9740 PACIFIC BELL 732      
858-831 8 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2012-08-07   
858-831 9 SNDGCA16DS0  9740 PACIFIC BELL 732      
858-860 A SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-860 0   145J TERRA NOVA TELECOM INC. 732   2025-10-09   
858-860 1   649C ONVOY, LLC - CA 732   2025-11-28   
858-860 2 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-860 3 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-860 4 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2013-03-22   
858-860 5 SNDGCA0242Z  516C AT&T CORP. 732   2011-04-06   
858-860 6 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2013-03-22   
858-860 7 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-860 8 SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.