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: 799

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-799 A Grand Blanc MI SFLDMIMK8MD  965H FRACTEL, LLC 340      
810-799 1 Grand Blanc MI   624H ONVOY SPECTRUM, LLC 340   2021-12-02   
810-799 2 Grand Blanc MI   624H ONVOY SPECTRUM, LLC 340   2021-12-02   
810-799 6 Grand Blanc MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2021-11-03   
810-799 7 Grand Blanc MI   145J TERRA NOVA TELECOM INC. 340   2024-10-12   
810-799 8 Grand Blanc MI   516J TON80 COMMUNICATIONS, LLC 340   2021-10-16   
810-799 9 Grand Blanc MI   965H FRACTEL, LLC 340   2021-06-03   

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

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