Local Calling Guide

Area code/prefix search

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NPA: 520 [Rate centres in NPA 520] [Dial plan for NPA 520]

NXX: 501

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-501 A Tucson AZ TCSNAZMAXDY  506J TWILIO INTERNATIONAL, INC. 668      
520-501 0 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2020-12-20   
520-501 1 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2020-12-20   
520-501 2 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2020-12-20   
520-501 3 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2020-12-20   
520-501 4 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2020-12-20   
520-501 5 Tucson AZ TCSNAZMAXDY  506J TWILIO INTERNATIONAL, INC. 668   2020-12-19   
520-501 6 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2020-12-20   
520-501 7 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2020-12-20   
520-501 8 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2020-12-20   
520-501 9 Tucson AZ TCSMAZCH1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 668   2020-12-20   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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