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: 500

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-500 A Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-500 0 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-04-27   
520-500 1 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-04-27   
520-500 2 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2015-05-01   
520-500 3 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2015-05-01   
520-500 4 Tucson AZ TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2015-05-01   
520-500 5 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-04-27   
520-500 6 Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2015-06-09   
520-500 7 Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2015-07-08   
520-500 8 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-04-28   
520-500 9 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2015-04-28   

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

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