Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 660 [Rate centres in NPA 660] [Dial plan for NPA 660]

NXX: 800

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-800 A Chillicothe MO KSCYMO55X0Z  965H FRACTEL, LLC 524      
660-800 0 Chillicothe MO KSCYMO55X0Z  965H FRACTEL, LLC 524   2019-10-01   
660-800 1 Chillicothe MO KSCYMO55XPY  939H COMMIO, LLC 524   2022-12-08   
660-800 5 Chillicothe MO KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524   2020-12-11   
660-800 8 Chillicothe MO KSCYMO55X0Z  965H FRACTEL, LLC 524   2019-10-01   
660-800 9 Chillicothe MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 524   2025-12-08   

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

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