Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
507-657 A OSTRMNXORS0  1345 ACE TEL. ASSN. - MN 620      
507-657 0   1345 ACE TEL. ASSN. - MN 620      
507-657 1   1345 ACE TEL. ASSN. - MN 620      
507-657 2   1345 ACE TEL. ASSN. - MN 620      
507-657 7   1345 ACE TEL. ASSN. - MN 620      
507-657 8   1345 ACE TEL. ASSN. - MN 620      
507-657 9   1345 ACE TEL. ASSN. - MN 620      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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