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: 276

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-276 A Upper Lake CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
707-276 0 Upper Lake CA   515J IP HORIZON LLC 722   2021-05-03   
707-276 2 Upper Lake CA   516J TON80 COMMUNICATIONS, LLC 722   2021-09-08   
707-276 3 Upper Lake CA   145J TERRA NOVA TELECOM INC. 722   2023-06-24   
707-276 4 Upper Lake CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2025-05-08   
707-276 5 Upper Lake CA   9262 UTILITY TELECOM GROUP, LLC - CA 722   2006-05-16   
707-276 6 Upper Lake CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2009-02-25   
707-276 9 Upper Lake CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      

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

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