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: 951 [Rate centres in NPA 951] [Dial plan for NPA 951]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
951-603 A Temescal Canyon CA LSANCARCD9S  4129 O1 COMMUNICATIONS, INC. - CA 730   2006-06-19   
951-603 0 Temescal Canyon CA   9740 PACIFIC BELL 730   2006-09-08   
951-603 1 Temescal Canyon CA   4129 O1 COMMUNICATIONS, INC. - CA 730   2006-06-19   
951-603 2 Temescal Canyon CA   4129 O1 COMMUNICATIONS, INC. - CA 730   2006-06-19   
951-603 3 Temescal Canyon CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2007-03-13   
951-603 4 Temescal Canyon CA   6529 T-MOBILE USA, INC. 730   2007-08-13   
951-603 5 Temescal Canyon CA   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730   2007-12-01   
951-603 6 Temescal Canyon CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2008-02-11   
951-603 7 Temescal Canyon CA   8690 GLOBAL CROSSING LOCAL SERVICES, INC.-CA 730   2007-01-06   
951-603 8 Temescal Canyon CA   649C ONVOY, LLC - CA 730   2008-06-02   
951-603 9 Temescal Canyon CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-05-26   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.