Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 520 [Rate centres in NPA 520] [Dial plan for NPA 520]

NXX: 226

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-226 A Sierra Vista AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668      
520-226 0 Sierra Vista AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2005-02-07   
520-226 1 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2006-07-17   
520-226 2 Sierra Vista AZ TCSMAZCHCMD  145J TERRA NOVA TELECOM INC. 668   2022-10-18   
520-226 3 Sierra Vista AZ TCSNAZXGDS0  7465 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ 668   2006-08-11   
520-226 4 Sierra Vista AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668      
520-226 5 Sierra Vista AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2005-08-07   
520-226 6 Sierra Vista AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2006-05-26   
520-226 7 Sierra Vista AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2006-12-28   
520-226 8 Sierra Vista AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2007-03-03   
520-226 9 Sierra Vista AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2007-03-03   

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

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