Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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New Haven, MI

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
586-928 5 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-04-25   
586-928 7 SFLDMIMK9MD  145J TERRA NOVA TELECOM INC. 340   2024-02-15   
586-928 8 FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2009-10-27   
586-928 9 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      

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

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