Local Calling Guide

Area code/prefix search

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

NXX: 621

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-621 A Lennon MI LNONMIXIDS1  0708 LENNON TEL. CO. 340      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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