Local Calling Guide

Area code/prefix search

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

NXX: 452

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-452 A Lapeer MI   817J INTERACTIVE SERVICES NETWORK, INC. 340      

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

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