Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: NHLLCA01DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
661-200 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-200 1 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730   2007-12-28   
661-200 2 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730   2008-01-12   
661-222 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-222 0 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-222 1 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-222 2 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-222 3 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-222 5 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-222 6 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-222 7 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-222 8 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-222 9 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-253 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-254 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-255 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-259 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-260 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-284 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-286 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-286 0 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-286 1 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-286 2 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-286 4 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-286 6 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-286 7 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-286 8 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-286 9 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-287 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-288 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-290 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-291 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-471 1 Lancaster CA 7480 PACIFIC BELL (COMPETITIVE) 730   2013-03-27   
661-471 4 Lancaster CA 7480 PACIFIC BELL (COMPETITIVE) 730   2013-04-01   
661-483 5 Lancaster CA 7480 PACIFIC BELL (COMPETITIVE) 730   2014-08-26   
661-524 2 Lancaster CA 7480 PACIFIC BELL (COMPETITIVE) 730   2008-08-22   
661-582 7 Lancaster CA 7480 PACIFIC BELL (COMPETITIVE) 730   2016-06-15   
661-753 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-753 0 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-753 1 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-753 2 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-753 5 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-753 9 Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-799 A Santa Clarita: Newhall-Castaic DA CA 9740 PACIFIC BELL 730      
661-974 A Lancaster CA 7480 PACIFIC BELL (COMPETITIVE) 730      
661-974 7 Lancaster CA 7480 PACIFIC BELL (COMPETITIVE) 730      
661-974 8 Lancaster CA 7480 PACIFIC BELL (COMPETITIVE) 730   2004-10-16   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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