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: 680

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-680 A Bakersfield: North DA CA BKFDCA11X7X  624H ONVOY SPECTRUM, LLC 734   2025-06-10   
661-680 0 Bakersfield: North DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2026-07-17   
661-680 1 Bakersfield: North DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2026-07-17   
661-680 2 Bakersfield: North DA CA   649C ONVOY, LLC - CA 734   2026-09-04   
661-680 3 Bakersfield: North DA CA   649C ONVOY, LLC - CA 734   2026-09-04   
661-680 4 Bakersfield: North DA CA BKFDCA11X7X  624H ONVOY SPECTRUM, LLC 734   2025-06-10   
661-680 5 Bakersfield: North DA CA BKFDCA11X7X  624H ONVOY SPECTRUM, LLC 734   2025-06-10   
661-680 6 Bakersfield: North DA CA BKFDCA11X7X  624H ONVOY SPECTRUM, LLC 734   2025-06-10   
661-680 7 Bakersfield: North DA CA   649C ONVOY, LLC - CA 734   2026-09-04   
661-680 8 Bakersfield: North DA CA   649C ONVOY, LLC - CA 734   2026-07-24   
661-680 9 Bakersfield: North DA CA   649C ONVOY, LLC - CA 734   2026-07-24   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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