Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Jamesport, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
660-684 A PRTNMOXADS0  1888 GRAND RIVER MUTUAL TEL CO 524      
660-684 0   1888 GRAND RIVER MUTUAL TEL CO 524      
660-684 1   1888 GRAND RIVER MUTUAL TEL CO 524      
660-684 2   1888 GRAND RIVER MUTUAL TEL CO 524      
660-684 3   1888 GRAND RIVER MUTUAL TEL CO 524      
660-684 4   1888 GRAND RIVER MUTUAL TEL CO 524      
660-684 5   1888 GRAND RIVER MUTUAL TEL CO 524      
660-684 6   1888 GRAND RIVER MUTUAL TEL CO 524      
660-684 7 KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524   2026-04-15   
660-684 9   1888 GRAND RIVER MUTUAL TEL CO 524      

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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