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: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 299

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-299 A Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-299 0 Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-299 1 Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-299 2 Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-299 3 Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-299 4 Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-299 5 Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-299 6 Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      
661-299 7 Santa Clarita: Saugus Canyon Country DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-01-05   
661-299 8 Santa Clarita: Saugus Canyon Country DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2014-02-10   
661-299 9 Santa Clarita: Saugus Canyon Country DA CA SLMNCA11DS0  9740 PACIFIC BELL 730      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.