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: 477

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-477 A Tucson AZ TCSNAZMAXEY  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 668      
520-477 0 Tucson AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668      
520-477 1 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-477 2 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-477 3 Tucson AZ TCSNAZXGDS0  7465 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ 668      
520-477 4 Tucson AZ   587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-477 5 Tucson AZ TCSNAZMAXEY  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 668      
520-477 6 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-477 7 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-477 8 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-477 9 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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