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: 234

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-234 A Sierra Vista AZ TCSNAZMAZMD  7421 AT&T - LOCAL 668      
520-234 0 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2004-04-26   
520-234 1 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2005-05-08   
520-234 2 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2004-03-15   
520-234 3 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2005-03-05   
520-234 4 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2004-02-24   
520-234 5 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2004-01-19   
520-234 6 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2003-11-26   
520-234 7 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2003-08-20   
520-234 8 Sierra Vista AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2003-08-20   
520-234 9 Sierra Vista AZ TCSNAZMAZMD  7421 AT&T - LOCAL 668   2003-01-11   

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

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