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: 844

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-844 A St Charles MN ROCHMNROXVX  965H FRACTEL, LLC 620      
507-844 2 St Charles MN   624H ONVOY SPECTRUM, LLC 620   2021-10-23   
507-844 3 St Charles MN   624H ONVOY SPECTRUM, LLC 620   2021-10-23   
507-844 4 St Charles MN   965H FRACTEL, LLC 620   2020-12-11   
507-844 6 St Charles MN   8405 TELEPORT COMMUNICATIONS AMERICA, LLC - MN 620   2022-07-11   
507-844 7 St Charles MN   624H ONVOY SPECTRUM, LLC 620   2021-06-21   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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