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: 617

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-617 A Otisville MI SFLDMIMKBMD  516J TON80 COMMUNICATIONS, LLC 340      
810-617 2 Otisville MI SFLDMIMKBMD  516J TON80 COMMUNICATIONS, LLC 340   2022-04-22   
810-617 3 Otisville MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2024-03-23   
810-617 9 Otisville MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2025-04-20   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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