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: 640

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-640 A Dixon CA SCRMCA01X9Z  508J CENTURYLINK COMMUNICATIONS, LLC 726      
707-640 0 Dixon CA   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2014-07-11   
707-640 1 Dixon CA   981E BANDWIDTH.COM CLEC, LLC - CA 726   2015-06-12   
707-640 2 Dixon CA   649C ONVOY, LLC - CA 726   2016-03-30   
707-640 3 Dixon CA   649C ONVOY, LLC - CA 726   2016-03-30   
707-640 4 Dixon CA   5562 METROPCS, INC. 726   2018-04-22   
707-640 5 Dixon CA   5562 METROPCS, INC. 726   2018-10-07   
707-640 6 Dixon CA   649C ONVOY, LLC - CA 726   2019-02-25   
707-640 7 Dixon CA   508J CENTURYLINK COMMUNICATIONS, LLC 726   2014-07-10   
707-640 8 Dixon CA   073H TELNYX LLC 726   2017-03-24   
707-640 9 Dixon CA   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2015-09-03   

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

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