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: 719

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-719 A Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668      
520-719 0 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2015-09-21   
520-719 1 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2015-09-21   
520-719 2 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-12-22   
520-719 3 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-12-22   
520-719 4 Tucson AZ   829J PAETEC ITEL, LLC 668   2016-03-04   
520-719 5 Tucson AZ TCSMAZOI3MD  5562 METROPCS, INC. 668   2016-01-11   
520-719 6 Tucson AZ TCSNAZMAXKX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 668   2016-01-16   
520-719 7 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2015-09-22   
520-719 8 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2015-09-22   
520-719 9 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2015-09-22   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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