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: 212

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-212 A Page AZ   630E ONVOY, LLC - AZ 666      
928-212 0 Page AZ   145J TERRA NOVA TELECOM INC. 666   2025-10-13   
928-212 1 Page AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2012-12-16   
928-212 2 Page AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2012-12-16   
928-212 3 Page AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2016-03-14   
928-212 4 Page AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2016-03-14   
928-212 5 Page AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2016-04-22   
928-212 6 Page AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2016-04-22   
928-212 7 Page AZ PHNXAZUI8MD  508J CENTURYLINK COMMUNICATIONS, LLC 666   2015-09-26   
928-212 8 Page AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2013-04-21   
928-212 9 Page AZ PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2013-04-21   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.