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: 653

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-653 A Delano CA BKFDCA01X2X  6529 T-MOBILE USA, INC. 734      
661-653 0 Delano CA   939H COMMIO, LLC 734   2022-07-22   
661-653 1 Delano CA   624H ONVOY SPECTRUM, LLC 734   2025-02-21   
661-653 2 Delano CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2023-05-13   
661-653 3 Delano CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2023-07-11   
661-653 5 Delano CA   490J DISH WIRELESS, LLC 734   2023-12-05   
661-653 6 Delano CA   649C ONVOY, LLC - CA 734   2023-08-10   
661-653 7 Delano CA   649C ONVOY, LLC - CA 734   2023-08-10   
661-653 8 Delano CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2022-08-04   
661-653 9 Delano CA   6529 T-MOBILE USA, INC. 734   2022-06-24   

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

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