Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 507 [Rate centres in NPA 507] [Dial plan for NPA 507]

NXX: 974

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-974 A Rochester MN ROCHMNHI8MD  475J CALLWORKS CORPORATION 620   2024-02-02   
507-974 1 Rochester MN ROCHMNHI8MD  475J CALLWORKS CORPORATION 620   2024-02-02   
507-974 9 Rochester MN ROCHMNROXXX  5816 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 620   2024-05-08   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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