Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 707 [Rate centres in NPA 707] [Dial plan for NPA 707]

NXX: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-203 A Elk CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2024-01-21   
707-203 0 Elk CA   649C ONVOY, LLC - CA 722   2016-03-10   
707-203 1 Elk CA   515J IP HORIZON LLC 722   2016-09-14   
707-203 2 Elk CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2017-02-23   
707-203 3 Elk CA   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 722   2018-07-13   
707-203 4 Elk CA   9262 UTILITY TELECOM GROUP, LLC - CA 722   2017-11-06   
707-203 5 Elk CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2020-03-12   
707-203 6 Elk CA   516C AT&T CORP. 722   2025-01-08   
707-203 7 Elk CA   649C ONVOY, LLC - CA 722   2019-02-17   
707-203 8 Elk CA   649C ONVOY, LLC - CA 722   2019-02-17   
707-203 9 Elk CA   515J IP HORIZON LLC 722   2021-05-03   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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