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: PHNXAZMAXHY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
602-554 A Phoenix AZ 890G INTRADO COMMUNICATIONS, LLC 666      
602-554 0 Phoenix AZ 890G INTRADO COMMUNICATIONS, LLC 666   2015-02-21   
602-554 9 Phoenix AZ 890G INTRADO COMMUNICATIONS, LLC 666   2015-02-21   
602-563 8 Phoenix AZ 890G INTRADO COMMUNICATIONS, LLC 666   2018-11-22   
602-585 A Phoenix AZ 890G INTRADO COMMUNICATIONS, LLC 666      
602-585 0 Phoenix AZ 890G INTRADO COMMUNICATIONS, LLC 666   2015-10-25   
602-585 9 Phoenix AZ 890G INTRADO COMMUNICATIONS, LLC 666   2015-10-25   
602-691 0 Phoenix AZ 890G INTRADO COMMUNICATIONS, LLC 666   2019-11-25   
602-691 1 Phoenix AZ 890G INTRADO COMMUNICATIONS, LLC 666   2019-11-25   
602-691 2 Phoenix AZ 890G INTRADO COMMUNICATIONS, LLC 666   2019-11-25   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.