Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 810 [Rate centres in NPA 810] [Dial plan for NPA 810]

NXX: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-255 A Hadley MI BRHMMIBDBMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
810-255 0 Hadley MI   543C ONVOY, LLCV - MI 340   2018-10-20   
810-255 1 Hadley MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2018-10-28   
810-255 2 Hadley MI   543C ONVOY, LLCV - MI 340   2020-02-08   
810-255 3 Hadley MI   543C ONVOY, LLCV - MI 340   2020-02-08   
810-255 4 Hadley MI   543C ONVOY, LLCV - MI 340   2020-06-14   
810-255 5 Hadley MI   543C ONVOY, LLCV - MI 340   2020-06-14   
810-255 6 Hadley MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2015-11-13   
810-255 7 Hadley MI   543C ONVOY, LLCV - MI 340   2021-03-05   
810-255 8 Hadley MI   543C ONVOY, LLCV - MI 340   2019-03-23   
810-255 9 Hadley MI   543C ONVOY, LLCV - MI 340   2019-03-23   

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

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