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: 416

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-416 A Tucson AZ TCSNAZMAX8Y  114J EXIANT COMMUNICATIONS LLC 668      
520-416 0 Tucson AZ TCSNAZMAX0Y  890G INTRADO COMMUNICATIONS, LLC 668   2019-11-22   
520-416 1 Tucson AZ TCSNAZMAX8Y  114J EXIANT COMMUNICATIONS LLC 668   2019-11-07   
520-416 2 Tucson AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2019-12-01   
520-416 3 Tucson AZ TCSNAZMAVMD  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 668   2019-12-01   
520-416 4 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2019-12-15   
520-416 5 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2019-12-15   
520-416 6 Tucson AZ TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2019-12-15   
520-416 7 Tucson AZ TCSNAZMAXKX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 668   2019-12-13   
520-416 8 Tucson AZ TCSNAZMAX0Y  890G INTRADO COMMUNICATIONS, LLC 668   2019-11-22   
520-416 9 Tucson AZ TCSNAZMAX0Y  890G INTRADO COMMUNICATIONS, LLC 668   2019-11-22   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.