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: 267

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
231-267 A Williamsburg MI WLBGMIWBRSA  9323 MICHIGAN BELL TEL CO 348      
231-267 0 Williamsburg MI   3535 ACD TELECOM, INC. - MI 348   2005-02-18   
231-267 1 Williamsburg MI   817J INTERACTIVE SERVICES NETWORK, INC. 348   2005-09-02   
231-267 2 Williamsburg MI   543C ONVOY, LLCV - MI 348   2021-05-10   
231-267 3 Williamsburg MI   792K CHARTER IP ENABLED SERVICES, LLC 348   2007-02-25   
231-267 4 Williamsburg MI   7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 348   2009-12-01   
231-267 5 Williamsburg MI   9323 MICHIGAN BELL TEL CO 348      
231-267 6 Williamsburg MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2004-11-14   
231-267 7 Williamsburg MI   829J PAETEC ITEL, LLC 348   2004-02-12   
231-267 8 Williamsburg MI   991E BANDWIDTH.COM CLEC, LLC - MI 348   2011-12-30   
231-267 9 Williamsburg MI   9323 MICHIGAN BELL TEL CO 348      

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

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