Local Calling Guide

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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 261

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-261 A Big Butte CA LKLACA11DS1  9740 PACIFIC BELL 730      
661-261 0 Big Butte CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2019-06-13   
661-261 1 Big Butte CA   9740 PACIFIC BELL 730      
661-261 2 Big Butte CA   9262 UTILITY TELECOM GROUP, LLC - CA 730   2014-05-26   
661-261 3 Big Butte CA   9740 PACIFIC BELL 730      
661-261 4 Big Butte CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-07-26   
661-261 5 Big Butte CA   649C ONVOY, LLC - CA 730   2013-05-03   
661-261 6 Big Butte CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2011-12-24   
661-261 7 Big Butte CA   649C ONVOY, LLC - CA 730   2014-10-31   
661-261 8 Big Butte CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-05-24   
661-261 9 Big Butte CA   073H TELNYX LLC 730   2018-07-14   

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

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