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: 540

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-540 A Lake Havasu City AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2024-05-19   
928-540 0 Lake Havasu City AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2024-05-19   
928-540 5 Lake Havasu City AZ   907K ALLO COMMUNICATIONS LLC 666   2025-05-26   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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