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: 603

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-603 A Kasson MN ROCHMNHH0MD  447D CHARTER FIBERLINK, LLC - MN 620      
507-603 0 Kasson MN ROCHMNROTMD  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 620   2022-05-08   
507-603 1 Kasson MN ROCHMNHH0MD  447D CHARTER FIBERLINK, LLC - MN 620      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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