Local Calling Guide

Area code/prefix search

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

NXX: 584

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-584 A Grand Blanc MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-584 0 Grand Blanc MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-584 1 Grand Blanc MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-584 2 Grand Blanc MI   460K FIRST COMMUNICATIONS, LLC 340   2009-05-28   
810-584 4 Grand Blanc MI   829J PAETEC ITEL, LLC 340   2007-12-11   
810-584 5 Grand Blanc MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2010-09-11   
810-584 6 Grand Blanc MI   829J PAETEC ITEL, LLC 340   2009-10-26   
810-584 7 Grand Blanc MI   318J COMCAST IP PHONE, LLC 340   2010-09-14   
810-584 8 Grand Blanc MI   543C ONVOY, LLCV - MI 340   2023-07-21   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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