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.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
928-377 3 Kingman AZ   666   2005-05-15   
928-404 A Bullhead City North AZ KGMNAZXCEMD  666      
928-404 2 Bullhead City North AZ   666   2014-03-03   
928-404 4 Bullhead City North AZ   666   2005-06-02   
928-404 6 Bullhead City North AZ   666   2014-03-03   
928-440 A Flagstaff AZ PHNXAZMAXBY  666      
928-440 3 Flagstaff AZ   666   2014-01-03   
928-440 4 Flagstaff AZ   666   2014-01-03   
928-440 5 Flagstaff AZ   666   2014-01-03   
928-444 A Bullhead City AZ KGMNAZXCEMD  666      
928-444 4 Bullhead City AZ   666   2005-05-15   
928-466 9 Castle Rock AZ   666   2005-05-16   
928-478 2 Payson AZ   666   2013-08-06   
928-478 6 Payson AZ   666   2005-05-22   
928-529 A Kingman AZ KGMNAZXCEMD  666      
928-529 2 Kingman AZ   666   2014-04-07   
928-529 3 Kingman AZ   666   2014-04-07   
928-529 4 Kingman AZ   666   2014-04-07   
928-529 5 Kingman AZ   666   2014-04-07   
928-554 1 Sedona AZ   666   2013-05-09   
928-554 4 Sedona AZ   666   2005-05-22   
928-565 1 Kingman AZ   666   2006-12-05   
928-566 A Lake Havasu City AZ KGMNAZXCEMD  666      
928-566 1 Lake Havasu City AZ   666   2007-03-06   
928-566 4 Lake Havasu City AZ   666   2005-06-02   
928-575 A Parker AZ VTVLCAXAXPX  730      
928-575 1 Parker AZ   730   2014-03-23   
928-575 4 Parker AZ   730   2005-05-15   
928-577 2 Mohave Valley AZ   666   2014-03-03   
928-662 6 Parker Dam AZ   730   2014-07-04   
928-667 5 Parker Dam AZ   730   2005-05-16   
928-733 A Lake Havasu City AZ KGMNAZXCEMD  666      
928-733 1 Lake Havasu City AZ   666   2014-01-03   
928-733 2 Lake Havasu City AZ   666   2014-01-03   
928-733 3 Lake Havasu City AZ   666   2014-01-03   
928-733 4 Lake Havasu City AZ   666   2014-01-03   
928-733 5 Lake Havasu City AZ   666   2014-01-03   
928-733 6 Lake Havasu City AZ   666   2014-01-03   
928-764 5 Castle Rock AZ   666   2014-03-03   
928-770 A Mohave Valley AZ KGMNAZXCEMD  666      
928-770 0 Mohave Valley AZ   666   2018-01-29   
928-770 4 Mohave Valley AZ   666   2005-06-02   
928-862 2 Sedona AZ   666   2014-03-03   
928-862 3 Sedona AZ   666   2014-03-03   
928-862 4 Sedona AZ   666   2014-03-03   
928-923 5 Ehrenberg AZ   730   2014-03-23   
929-210 0 New York City Zone 06 NY WHPLNYGR1MD  132   2012-11-26   
929-210 8 New York City Zone 06 NY WHPLNYGR1MD  132   2012-11-26   
929-210 9 New York City Zone 06 NY WHPLNYGR1MD  132   2012-11-26   
929-222 3 New York City Zone 05 NY WHPLNYGR1MD  132   2012-10-14   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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