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: PHNXAZMAXTY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
602-602 0 Phoenix AZ 321J HD CARRIER LLC 666   2024-11-15   
602-602 1 Phoenix AZ 321J HD CARRIER LLC 666   2024-11-15   
602-602 2 Phoenix AZ 321J HD CARRIER LLC 666   2024-11-15   
602-602 3 Phoenix AZ 321J HD CARRIER LLC 666   2024-11-15   
602-602 4 Phoenix AZ 321J HD CARRIER LLC 666   2024-11-15   
602-602 6 Phoenix AZ 321J HD CARRIER LLC 666   2024-11-15   
602-602 7 Phoenix AZ 321J HD CARRIER LLC 666   2024-11-15   
602-602 8 Phoenix AZ 321J HD CARRIER LLC 666   2024-11-15   
602-602 9 Phoenix AZ 321J HD CARRIER LLC 666   2024-11-15   
602-609 A Phoenix AZ 321J HD CARRIER LLC 666      
602-609 9 Phoenix AZ 321J HD CARRIER LLC 666   2019-08-01   
928-293 4 Kingman AZ 321J HD CARRIER LLC 666   2018-01-28   
928-293 8 Kingman AZ 321J HD CARRIER LLC 666   2018-01-28   
928-293 9 Kingman AZ 321J HD CARRIER LLC 666   2018-01-28   
928-529 1 Kingman AZ 321J HD CARRIER LLC 666   2018-01-28   

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

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