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: PHNXAZ28VMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
928-577 3 Mohave Valley AZ 073H TELNYX LLC 666   2021-02-21   
928-588 0 Wickenburg AZ 073H TELNYX LLC 666   2020-12-26   
928-598 0 Wikieup AZ 073H TELNYX LLC 666   2021-02-21   
928-599 9 Grand Canyon AZ 073H TELNYX LLC 666   2020-12-26   
928-766 1 Yucca AZ 073H TELNYX LLC 666   2020-05-08   
928-770 1 Mohave Valley AZ 073H TELNYX LLC 666   2020-05-08   
928-837 1 Yucca AZ 073H TELNYX LLC 666   2021-02-21   
928-929 0 Gila Bend AZ 073H TELNYX LLC 666   2021-02-27   
928-940 1 Pinetop AZ 073H TELNYX LLC 666   2020-05-08   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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