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: FLGSAZMADS0

Remotes:

Switch Switch name Switch type
ASFKAZMARS1  ASHFORK  5ER 
FLGSAZSORS1  FLAGSTAFF SOUTH  5ER 
GRCNAZMARS1  GRAND CANYON  5ER 
WLMSAZMARS1  WILLIAMS  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
928-213 A Flagstaff AZ 9636 QWEST CORPORATION 666      
928-214 A Flagstaff AZ 9636 QWEST CORPORATION 666      
928-226 A Flagstaff AZ 9636 QWEST CORPORATION 666      
928-523 A Flagstaff AZ 9636 QWEST CORPORATION 666      
928-556 A Flagstaff AZ 9636 QWEST CORPORATION 666      
928-679 A Flagstaff AZ 9636 QWEST CORPORATION 666      
928-773 A Flagstaff AZ 9636 QWEST CORPORATION 666      
928-774 A Flagstaff AZ 9636 QWEST CORPORATION 666      
928-779 A Flagstaff AZ 9636 QWEST CORPORATION 666      
928-913 A Flagstaff AZ 9636 QWEST CORPORATION 666      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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