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: 372

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-372 A Tucson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668      
520-372 0 Tucson AZ TCSNAZMAX0Y  890G INTRADO COMMUNICATIONS, LLC 668   2019-10-25   
520-372 1 Tucson AZ TCSNAZMAX0Y  890G INTRADO COMMUNICATIONS, LLC 668   2019-11-22   
520-372 2 Tucson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668   2019-09-19   
520-372 3 Tucson AZ TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2020-06-30   
520-372 4 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2020-07-04   
520-372 5 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2020-07-04   
520-372 6 Tucson AZ TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2020-07-04   
520-372 7 Tucson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668   2019-09-19   
520-372 8 Tucson AZ TCSNAZMAXCY  318J COMCAST IP PHONE, LLC 668   2019-09-19   
520-372 9 Tucson AZ TCSNAZMAX0Y  890G INTRADO COMMUNICATIONS, LLC 668   2019-11-22   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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