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: 455

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-455 A Montrose MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524      
660-455 1 Montrose MO WRBGMO150MD  5607 CHARTER FIBERLINK - MISSOURI, LLC - MO 524   2024-11-17   
660-455 2 Montrose MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524   2020-07-10   
660-455 3 Montrose MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524   2020-07-10   
660-455 4 Montrose MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524   2021-09-03   
660-455 5 Montrose MO KSCYMO55X0Z  965H FRACTEL, LLC 524   2019-11-14   
660-455 6 Montrose MO KSCYMO09YMD  6123 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 524   2022-07-11   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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