Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 231 [Rate centres in NPA 231] [Dial plan for NPA 231]

NXX: 916

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-916 A Mancelona MI GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-916 0 Mancelona MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-916 1 Mancelona MI   3535 ACD TELECOM, INC. - MI 348   2005-02-11   
231-916 2 Mancelona MI   792K CHARTER IP ENABLED SERVICES, LLC 348   2007-02-25   
231-916 3 Mancelona MI   543C ONVOY, LLCV - MI 348   2012-06-01   
231-916 4 Mancelona MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2004-07-17   
231-916 5 Mancelona MI   543C ONVOY, LLCV - MI 348   2013-01-03   
231-916 6 Mancelona MI   829J PAETEC ITEL, LLC 348   2004-02-10   
231-916 7 Mancelona MI   516C AT&T CORP. 348   2013-02-22   
231-916 9 Mancelona MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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