Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Sanborn, MN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
507-648 A NWULMNXNDS0  1502 WESTERN TEL. CO. 620      

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

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