Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Grand Canyon, AZ

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
928-888 3 PHNXAZ19DS3  579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2020-01-15   
928-888 4 PHNXAZMAXYX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666   2017-08-21   
928-888 6 PHNXAZ28DS3  630E ONVOY, LLC - AZ 666   2021-01-15   
928-888 8 PHNXAZ196MD  073H TELNYX LLC 666   2017-04-22   
928-888 9 PHNXAZMAXQX  587F BANDWIDTH.COM CLEC, LLC - AZ 666   2020-04-09   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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