Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 628 [Rate centres in NPA 628] [Dial plan for NPA 628]

NXX: 238

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
628-238 A Ignacio CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
628-238 0 Ignacio CA   649C ONVOY, LLC - CA 722   2016-08-29   
628-238 1 Ignacio CA   515J IP HORIZON LLC 722   2016-09-11   
628-238 2 Ignacio CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-09-12   
628-238 3 Ignacio CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-09-12   
628-238 4 Ignacio CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-09-12   
628-238 5 Ignacio CA   649C ONVOY, LLC - CA 722   2016-10-27   
628-238 6 Ignacio CA   073H TELNYX LLC 722   2017-06-05   
628-238 7 Ignacio CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2016-12-30   
628-238 8 Ignacio CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-09-12   
628-238 9 Ignacio CA   6529 T-MOBILE USA, INC. 722   2016-08-22   

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

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