Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 928 [Rate centres in NPA 928] [Dial plan for NPA 928]

NXX: 498

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-498 A Snowflake AZ PHNXAZMAXYX  7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666      
928-498 0 Snowflake AZ   073H TELNYX LLC 666   2020-05-08   
928-498 1 Snowflake AZ   939H COMMIO, LLC 666   2021-10-10   
928-498 2 Snowflake AZ   939H COMMIO, LLC 666   2024-03-28   
928-498 4 Snowflake AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2025-07-18   
928-498 5 Snowflake AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2025-07-08   
928-498 6 Snowflake AZ   7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666   2018-12-21   
928-498 7 Snowflake AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2021-10-23   
928-498 8 Snowflake AZ   939H COMMIO, LLC 666   2021-10-10   
928-498 9 Snowflake AZ   939H COMMIO, LLC 666   2021-10-10   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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