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.

Switch: TCSNAZMAX0Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
520-372 0 Tucson AZ 890G INTRADO COMMUNICATIONS, LLC 668      
520-372 1 Tucson AZ 890G INTRADO COMMUNICATIONS, LLC 668      
520-372 9 Tucson AZ 890G INTRADO COMMUNICATIONS, LLC 668      
520-416 0 Tucson AZ 890G INTRADO COMMUNICATIONS, LLC 668      
520-416 8 Tucson AZ 890G INTRADO COMMUNICATIONS, LLC 668      
520-416 9 Tucson AZ 890G INTRADO COMMUNICATIONS, LLC 668      
520-809 A Tucson AZ 890G INTRADO COMMUNICATIONS, LLC 668      
520-809 9 Tucson AZ 890G INTRADO COMMUNICATIONS, LLC 668      
520-965 6 Tucson AZ 890G INTRADO COMMUNICATIONS, LLC 668      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.