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: 389

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-389 A Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668      
520-389 0 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-11-25   
520-389 1 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-11-25   
520-389 2 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-11-25   
520-389 3 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-11-25   
520-389 4 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-11-25   
520-389 5 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2014-12-06   
520-389 6 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2014-12-06   
520-389 7 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-11-25   
520-389 8 Tucson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668   2014-11-25   
520-389 9 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2014-11-23   

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

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