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: 928 [Rate centres in NPA 928] [Dial plan for NPA 928]

NXX: 335

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-335 A Whiteriver AZ HLLKAZXCRL0  4426 CITIZENS TELECOM CO OF WHITE MOUNTAINS INC. 666      
928-335 0 Whiteriver AZ HLLKAZXCRL0  4426 CITIZENS TELECOM CO OF WHITE MOUNTAINS INC. 666      
928-335 4 Whiteriver AZ HLLKAZXCRL0  4426 CITIZENS TELECOM CO OF WHITE MOUNTAINS INC. 666      
928-335 9 Whiteriver AZ HLLKAZXCRL0  4426 CITIZENS TELECOM CO OF WHITE MOUNTAINS INC. 666      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.