Local Calling Guide

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NPA: 810 [Rate centres in NPA 810] [Dial plan for NPA 810]

NXX: 375

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-375 A Dryden MI SFLDMIDICA0  2550 123.NET, LLC 340      
810-375 1 Dryden MI   145J TERRA NOVA TELECOM INC. 340   2025-05-13   
810-375 2 Dryden MI   792K CHARTER IP ENABLED SERVICES, LLC 340   2007-02-25   
810-375 3 Dryden MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2011-03-12   
810-375 4 Dryden MI   508J CENTURYLINK COMMUNICATIONS, LLC 340   2014-03-20   
810-375 5 Dryden MI   543C ONVOY, LLCV - MI 340   2013-03-15   
810-375 6 Dryden MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2016-02-05   
810-375 7 Dryden MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-09-25   
810-375 8 Dryden MI   543C ONVOY, LLCV - MI 340   2017-05-19   
810-375 9 Dryden MI   2550 123.NET, LLC 340   2003-03-09   

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

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