Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX: 702

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-702 A Douglas AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668      
520-702 0 Douglas AZ   516J TON80 COMMUNICATIONS, LLC 668   2022-04-11   
520-702 1 Douglas AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2022-06-22   
520-702 2 Douglas AZ   630E ONVOY, LLC - AZ 668   2022-03-18   
520-702 3 Douglas AZ   630E ONVOY, LLC - AZ 668   2022-03-18   
520-702 4 Douglas AZ   630E ONVOY, LLC - AZ 668   2022-03-18   
520-702 5 Douglas AZ   630E ONVOY, LLC - AZ 668   2023-09-10   
520-702 6 Douglas AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 668   2025-06-06   
520-702 7 Douglas AZ   579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668   2023-03-19   
520-702 8 Douglas AZ   939H COMMIO, LLC 668   2022-09-05   
520-702 9 Douglas AZ   579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668   2022-03-19   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.