Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 339

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-339 A Hi Vista CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-339 0 Hi Vista CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-339 1 Hi Vista CA   515J IP HORIZON LLC 730   2015-09-19   
661-339 2 Hi Vista CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-339 3 Hi Vista CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
661-339 4 Hi Vista CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-05-26   
661-339 5 Hi Vista CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2016-02-24   
661-339 6 Hi Vista CA LSANCAJW2MD  508J CENTURYLINK COMMUNICATIONS, LLC 730   2014-06-27   
661-339 7 Hi Vista CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2008-09-19   
661-339 8 Hi Vista CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-05-24   
661-339 9 Hi Vista CA   145J TERRA NOVA TELECOM INC. 730   2023-03-21   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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