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: 781

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-781 A Tehachapi CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734   2026-03-13   
661-781 7 Tehachapi CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734   2026-03-13   
661-781 8 Tehachapi CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734   2026-03-13   
661-781 9 Tehachapi CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734   2026-03-13   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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