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: 652

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-652 A Santa Clarita: Newhall-Castaic DA CA   6529 T-MOBILE USA, INC. 730   2024-11-03   
661-652 9 Santa Clarita: Newhall-Castaic DA CA   6529 T-MOBILE USA, INC. 730      

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

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