Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 678

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-678 A Santa Clarita: Newhall-Castaic DA CA SHOKCA02DS2  7421 AT&T - LOCAL 730      
661-678 0 Santa Clarita: Newhall-Castaic DA CA ANHMCA01XEY  516C AT&T CORP. 730      
661-678 1 Santa Clarita: Newhall-Castaic DA CA LSANCA03DS3  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
661-678 2 Santa Clarita: Newhall-Castaic DA CA SHOKCA02DS2  7421 AT&T - LOCAL 730      
661-678 3 Santa Clarita: Newhall-Castaic DA CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
661-678 4 Santa Clarita: Newhall-Castaic DA CA SHOKCA02DS2  7421 AT&T - LOCAL 730      
661-678 5 Santa Clarita: Newhall-Castaic DA CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
661-678 6 Santa Clarita: Newhall-Castaic DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
661-678 7 Santa Clarita: Newhall-Castaic DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
661-678 8 Santa Clarita: Newhall-Castaic DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
661-678 9 Santa Clarita: Newhall-Castaic DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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