Local Calling Guide

Area code/prefix search

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

NXX: 773

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-773 A Walker Basin CA BKFDCA01X0X  516C AT&T CORP. 734      
661-773 2 Walker Basin CA   649C ONVOY, LLC - CA 734   2021-11-16   
661-773 3 Walker Basin CA   073H TELNYX LLC 734   2018-07-09   
661-773 5 Walker Basin CA   649C ONVOY, LLC - CA 734   2021-11-16   
661-773 7 Walker Basin CA   516C AT&T CORP. 734   2011-04-24   
661-773 8 Walker Basin CA   624H ONVOY SPECTRUM, LLC 734   2024-01-05   
661-773 9 Walker Basin CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 734   2018-10-21   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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