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.

Los Angeles: DA 01, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
213-266 4   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-04-14   
213-266 5   649C ONVOY, LLC - CA 730   2016-04-24   
213-266 6   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-06-15   
213-266 7   649C ONVOY, LLC - CA 730   2016-05-05   
213-266 8   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2015-08-21   
213-266 9   649C ONVOY, LLC - CA 730   2016-03-29   
213-268 A TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
213-269 A BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
213-269 0   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-10-31   
213-269 1   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-10-31   
213-269 2   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-10-31   
213-269 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2016-06-28   
213-269 4   649C ONVOY, LLC - CA 730   2016-07-17   
213-269 5   649C ONVOY, LLC - CA 730   2016-07-17   
213-269 6   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2015-11-01   
213-269 7   6529 T-MOBILE USA, INC. 730   2015-11-01   
213-269 8   6529 T-MOBILE USA, INC. 730   2015-11-01   
213-269 9   6529 T-MOBILE USA, INC. 730   2015-11-01   
213-270 A LSANCA03DS3  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
213-270 0   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
213-270 1   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2008-02-01   
213-270 2   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
213-270 3   6529 T-MOBILE USA, INC. 730   2005-08-11   
213-270 4   6529 T-MOBILE USA, INC. 730   2005-08-11   
213-270 5   6529 T-MOBILE USA, INC. 730   2005-08-11   
213-270 6   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
213-270 7   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
213-270 8   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
213-270 9   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
213-271 A IRVECAEIDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
213-271 0   899D METROPCS NETWORKS, LLC 730   2007-09-10   
213-271 1   7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
213-271 2   7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
213-271 3   6529 T-MOBILE USA, INC. 730   2007-09-10   
213-271 4   6529 T-MOBILE USA, INC. 730   2007-07-31   
213-271 5   6529 T-MOBILE USA, INC. 730   2007-07-31   
213-271 6   6529 T-MOBILE USA, INC. 730   2007-09-10   
213-271 7   6529 T-MOBILE USA, INC. 730   2007-07-31   
213-271 8   6529 T-MOBILE USA, INC. 730   2007-09-23   
213-271 9   7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
213-274 A TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
213-274 0   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2015-09-08   
213-274 1   6529 T-MOBILE USA, INC. 730   2015-09-08   
213-274 2   6529 T-MOBILE USA, INC. 730   2015-09-08   
213-274 3   6529 T-MOBILE USA, INC. 730   2015-09-08   
213-274 4   6529 T-MOBILE USA, INC. 730   2015-09-08   
213-274 5   6529 T-MOBILE USA, INC. 730   2015-09-08   
213-274 6   6529 T-MOBILE USA, INC. 730   2015-09-08   
213-274 7   321J HD CARRIER LLC 730   2016-06-02   
213-274 8   321J HD CARRIER LLC 730   2016-06-02   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.