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: 658

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-658 A Bakersfield: Main DA CA BKFDCAKTX3Y  616J LEAP TELECOM, LLC 734   2024-11-22   
661-658 0 Bakersfield: Main DA CA BKFDCAKTX3Y  616J LEAP TELECOM, LLC 734   2024-11-22   
661-658 1 Bakersfield: Main DA CA   624H ONVOY SPECTRUM, LLC 734   2025-10-16   
661-658 2 Bakersfield: Main DA CA   624H ONVOY SPECTRUM, LLC 734   2025-10-16   
661-658 3 Bakersfield: Main DA CA   624H ONVOY SPECTRUM, LLC 734   2025-10-16   
661-658 4 Bakersfield: Main DA CA   624H ONVOY SPECTRUM, LLC 734   2025-10-16   
661-658 5 Bakersfield: Main DA CA   624H ONVOY SPECTRUM, LLC 734   2025-10-16   
661-658 6 Bakersfield: Main DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2024-12-05   
661-658 7 Bakersfield: Main DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2024-12-05   
661-658 8 Bakersfield: Main DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2024-11-23   
661-658 9 Bakersfield: Main DA CA BKFDCA018MD  6010 NEW CINGULAR WIRELESS PCS, LLC 734   2024-11-23   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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