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.

Lancaster, CA

<< 1 2 3 4 5 6 7 8 9 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
661-874 8   6529 T-MOBILE USA, INC. 730   2005-04-16   
661-874 9   6529 T-MOBILE USA, INC. 730   2005-02-07   
661-886 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-886 0   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-886 1   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-886 2   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-886 3   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-886 4   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-886 5   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-886 6   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2008-02-03   
661-886 7   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-03-03   
661-886 8   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2006-04-28   
661-886 9   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2006-04-28   
661-899 A LSANCAJWIMD  965H FRACTEL, LLC 730      
661-899 0   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2021-03-31   
661-899 1   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-09-11   
661-899 2   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-09-09   
661-899 3   6529 T-MOBILE USA, INC. 730   2019-07-17   
661-899 4   649C ONVOY, LLC - CA 730   2023-01-02   
661-899 5   649C ONVOY, LLC - CA 730   2019-09-09   
661-899 6   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2020-04-26   
661-899 7   649C ONVOY, LLC - CA 730   2019-09-09   
661-899 8   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2021-03-31   
661-899 9   965H FRACTEL, LLC 730   2019-07-10   
661-902 A BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
661-902 0   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2007-07-03   
661-902 1   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2007-02-09   
661-902 2   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730      
661-902 3   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2008-02-03   
661-902 4   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2020-03-27   
661-902 5   829J PAETEC ITEL, LLC 730   2006-11-17   
661-902 6   829J PAETEC ITEL, LLC 730   2008-04-14   
661-902 7   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2012-09-03   
661-902 8   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2009-02-09   
661-902 9   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2007-04-09   
661-916 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-916 0   6529 T-MOBILE USA, INC. 730   2007-02-04   
661-916 1   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-916 2   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-916 3   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-916 4   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-916 5   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-916 6   6529 T-MOBILE USA, INC. 730   2004-11-01   
661-916 7   6529 T-MOBILE USA, INC. 730   2005-01-20   
661-916 8   6529 T-MOBILE USA, INC. 730   2004-12-01   
661-916 9   6529 T-MOBILE USA, INC. 730   2004-06-29   
661-917 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-940 A LNCSCAXG94K  2319 FRONTIER CALIFORNIA INC. 730      
661-941 A SNMNCAXPXJY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730      
661-941 0   6529 T-MOBILE USA, INC. 730   2014-06-11   

<< 1 2 3 4 5 6 7 8 9 >>

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.