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: 781

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-781 A Rockville MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524      
660-781 0 Rockville MO KSCYMO55DSG  225F PEERLESS NETWORK OF MISSOURI, LLC - MO 524   2019-03-28   
660-781 6 Rockville MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524   2021-03-07   
660-781 7 Rockville MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524   2021-03-07   
660-781 8 Rockville MO MAVLMOXAX0X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 524   2015-06-14   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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