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.

NPA: 805 [Rate centres in NPA 805] [Dial plan for NPA 805]

NXX: 638

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
805-638 A Simi Valley CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
805-638 0 Simi Valley CA ANHMCA01XEY  516C AT&T CORP. 730   2015-10-01   
805-638 1 Simi Valley CA LSANCAJW5MD  197D VONAGE AMERICA LLC 730   2019-12-06   
805-638 2 Simi Valley CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2015-10-16   
805-638 3 Simi Valley CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2015-10-17   
805-638 4 Simi Valley CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2015-11-20   
805-638 5 Simi Valley CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2016-01-03   
805-638 6 Simi Valley CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-09-30   
805-638 7 Simi Valley CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-09-09   
805-638 8 Simi Valley CA SIMICACNGT1  6529 T-MOBILE USA, INC. 730   2016-10-08   
805-638 9 Simi Valley CA SIMICACNGT1  899D METROPCS NETWORKS, LLC 730   2016-10-08   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.