Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 331 [Rate centres in NPA 331] [Dial plan for NPA 331]

NXX: 339

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-339 A Aurora IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2025-11-01   
331-339 0 Aurora IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2025-11-01   
331-339 1 Aurora IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2025-11-01   
331-339 2 Aurora IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2025-11-01   
331-339 3 Aurora IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2025-11-01   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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