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: 224

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-224 A Sierra Vista AZ TCSNAZ64NMD  7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 668      
520-224 0 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2016-05-21   
520-224 1 Sierra Vista AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2014-09-29   
520-224 2 Sierra Vista AZ TCSNAZ64NMD  7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 668      
520-224 3 Sierra Vista AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2011-10-03   
520-224 4 Sierra Vista AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2010-04-04   
520-224 5 Sierra Vista AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668   2013-04-11   
520-224 6 Sierra Vista AZ TCSNAZMAXKX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 668   2012-03-28   
520-224 7 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2017-02-05   
520-224 8 Sierra Vista AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2010-03-28   
520-224 9 Sierra Vista AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2014-09-29   

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

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