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 4   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2010-06-07   
586-928 5   543C ONVOY, LLCV - MI 340   2021-04-25   
586-928 7   145J TERRA NOVA TELECOM INC. 340   2024-02-15   
586-928 8   829J PAETEC ITEL, LLC 340   2009-10-27   
586-928 9   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      

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

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