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: PHNXAZ19CMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
520-772 A Superior AZ 516J TON80 COMMUNICATIONS, LLC 666      
623-267 A Phoenix AZ 516J TON80 COMMUNICATIONS, LLC 666      
928-546 A Bullhead City AZ 516J TON80 COMMUNICATIONS, LLC 666      
928-622 A Flagstaff AZ 516J TON80 COMMUNICATIONS, LLC 666      
928-665 A Grand Canyon AZ 516J TON80 COMMUNICATIONS, LLC 666      
928-746 A Harquahala Valley AZ 516J TON80 COMMUNICATIONS, LLC 666      
928-786 A Hyder AZ 516J TON80 COMMUNICATIONS, LLC 666      
928-836 A Heber AZ 516J TON80 COMMUNICATIONS, LLC 666      
928-837 A Yucca AZ 516J TON80 COMMUNICATIONS, LLC 666      
928-843 A Somerton AZ 516J TON80 COMMUNICATIONS, LLC 666      
928-872 A Bullhead City North AZ 516J TON80 COMMUNICATIONS, LLC 666      
928-878 A Gila Bend AZ 516J TON80 COMMUNICATIONS, LLC 666      
928-886 A St Johns AZ 516J TON80 COMMUNICATIONS, LLC 666      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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