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: 602 [Rate centres in NPA 602] [Dial plan for NPA 602]

NXX: 671

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
602-671 A Phoenix AZ PHNXAZUI8MD  508J CENTURYLINK COMMUNICATIONS, LLC 666      
602-671 0 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-07-09   
602-671 1 Phoenix AZ   663G RE-INVENT TELECOM, LLC - AZ 666   2020-06-29   
602-671 2 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-07-09   
602-671 3 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-07-09   
602-671 4 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-07-09   
602-671 5 Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2020-06-29   
602-671 6 Phoenix AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2020-06-29   
602-671 7 Phoenix AZ   508J CENTURYLINK COMMUNICATIONS, LLC 666   2020-06-28   
602-671 8 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-07-09   
602-671 9 Phoenix AZ   630E ONVOY, LLC - AZ 666   2020-07-09   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.