Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 660 [Rate centres in NPA 660] [Dial plan for NPA 660]

NXX: 707

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-707 A Chillicothe MO CHLCMOMIDS0  9533 SOUTHWESTERN BELL 524      
660-707 0 Chillicothe MO CHLCMOMIDS0  9533 SOUTHWESTERN BELL 524      
660-707 1 Chillicothe MO CHLCMOMIDS0  9533 SOUTHWESTERN BELL 524      
660-707 2 Chillicothe MO CHLCMOMIDS0  9533 SOUTHWESTERN BELL 524      
660-707 3 Chillicothe MO CHLCMOMIDS0  9533 SOUTHWESTERN BELL 524      
660-707 4 Chillicothe MO CHLCMOMIDS0  9533 SOUTHWESTERN BELL 524      
660-707 5 Chillicothe MO CHLCMOMIDS0  9533 SOUTHWESTERN BELL 524      
660-707 6 Chillicothe MO CHLCMOMIDS0  9533 SOUTHWESTERN BELL 524      
660-707 8 Chillicothe MO KSCZMOVRAMD  6701 AERIAL COMMUNICATIONS, INC. 524   2026-07-16   

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

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