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: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-900 A Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-900 0 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-10-15   
520-900 1 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-11-13   
520-900 2 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2015-12-01   
520-900 3 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2015-12-01   
520-900 4 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2015-12-01   
520-900 5 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-12-18   
520-900 6 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-12-18   
520-900 7 Tucson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668   2015-11-16   
520-900 8 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-10-15   
520-900 9 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-10-15   

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

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