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: 997

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-997 A McFarland CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2024-02-05   
661-997 0 McFarland CA BKFDCA11GMD  649C ONVOY, LLC - CA 734   2024-03-03   
661-997 1 McFarland CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734   2025-11-14   
661-997 2 McFarland CA   649C ONVOY, LLC - CA 734   2026-05-30   
661-997 4 McFarland CA   6010 NEW CINGULAR WIRELESS PCS, LLC 734   2024-12-19   
661-997 5 McFarland CA BKFDCAKTDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 734   2024-11-19   
661-997 6 McFarland CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2024-09-22   
661-997 8 McFarland CA BKFDCAKTDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 734   2024-04-12   
661-997 9 McFarland CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2024-02-05   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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