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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-526 A Tucson AZ   939H COMMIO, LLC 668   2017-06-25   
520-526 0 Tucson AZ   579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 668   2017-07-06   
520-526 1 Tucson AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2017-07-30   
520-526 2 Tucson AZ   657E COMCAST PHONE OF ARIZONA, LLC - AZ 668   2017-10-12   
520-526 3 Tucson AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2017-12-11   
520-526 4 Tucson AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2017-12-11   
520-526 5 Tucson AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2017-12-11   
520-526 6 Tucson AZ   939H COMMIO, LLC 668   2017-06-25   
520-526 7 Tucson AZ   7465 BROOKS FIBER COMMUNICATIONS OF TUCSON, INC. - AZ 668   2017-10-06   
520-526 8 Tucson AZ   7465 BROOKS FIBER COMMUNICATIONS OF TUCSON, INC. - AZ 668   2017-06-27   
520-526 9 Tucson AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2017-07-30   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.