Local Calling Guide

Area code/prefix search

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NPA: 520 [Rate centres in NPA 520] [Dial plan for NPA 520]

NXX: 812

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-812 A Tucson AZ TCSNAZMAXGX  722E YMAX COMMUNICATIONS CORP. - AZ 668      
520-812 0 Tucson AZ TCSNAZMAXGX  722E YMAX COMMUNICATIONS CORP. - AZ 668   2011-06-03   
520-812 1 Tucson AZ TCSNAZMAXGX  722E YMAX COMMUNICATIONS CORP. - AZ 668   2011-06-03   
520-812 2 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2011-08-17   
520-812 3 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2011-08-17   
520-812 4 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2011-08-17   
520-812 5 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2011-08-17   
520-812 6 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2011-08-17   
520-812 7 Tucson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668   2011-09-30   
520-812 8 Tucson AZ WLCXAZACDS0  183D VALLEY CONNECTIONS, L.L.C. - AZ 668   2011-10-12   
520-812 9 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2011-11-11   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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