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.
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NPA: 520 [Rate centres in NPA 520] [Dial plan for NPA 520]

NXX: 676

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
520-676 A Willcox AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2025-07-21   
520-676 0 Willcox AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2025-07-21   
520-676 1 Willcox AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2025-07-21   
520-676 2 Willcox AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2025-07-21   
520-676 3 Willcox AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2025-07-21   
520-676 4 Willcox AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2025-07-21   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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