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: PHNXAZMAXXY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
602-580 A Phoenix AZ 321J HD CARRIER LLC 666      
602-580 9 Phoenix AZ 321J HD CARRIER LLC 666   2020-02-07   
602-693 A Phoenix AZ 321J HD CARRIER LLC 666      
602-693 7 Phoenix AZ 321J HD CARRIER LLC 666   2020-06-29   
602-693 8 Phoenix AZ 321J HD CARRIER LLC 666   2020-06-29   
602-693 9 Phoenix AZ 321J HD CARRIER LLC 666   2020-06-29   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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