Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 619 [Rate centres in NPA 619] [Dial plan for NPA 619]

NXX: 657

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
619-657 A La Mesa CA ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-657 0 La Mesa CA   981E BANDWIDTH.COM CLEC, LLC - CA 732   2021-09-16   
619-657 1 La Mesa CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2024-08-13   
619-657 2 La Mesa CA   624H ONVOY SPECTRUM, LLC 732   2021-07-19   
619-657 3 La Mesa CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2021-04-19   
619-657 4 La Mesa CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2021-04-19   
619-657 5 La Mesa CA   6529 T-MOBILE USA, INC. 732   2021-04-18   
619-657 6 La Mesa CA   6529 T-MOBILE USA, INC. 732   2021-04-18   
619-657 7 La Mesa CA   6529 T-MOBILE USA, INC. 732   2021-04-18   
619-657 8 La Mesa CA   6529 T-MOBILE USA, INC. 732   2021-04-18   
619-657 9 La Mesa CA   6529 T-MOBILE USA, INC. 732   2021-04-18   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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