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: 448

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-448 A Tucson AZ TCSMAZCHDS0  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668      
520-448 0 Tucson AZ TCSMAZCHDS0  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668   2014-06-26   
520-448 1 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-07-05   
520-448 2 Tucson AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2014-08-31   
520-448 3 Tucson AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2014-08-31   
520-448 4 Tucson AZ TCSMAZCHDS0  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668   2014-06-26   
520-448 5 Tucson AZ TCSNAZEA5MD  7184 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - AZ 668   2014-08-19   
520-448 6 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-08-14   
520-448 7 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-08-14   
520-448 8 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-08-14   
520-448 9 Tucson AZ TCSMAZCHDS0  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668   2014-06-26   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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