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: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-557 A Sweet Springs MO OVPLKSAK0MD  356H NETGENUITY INC. 524      
660-557 0 Sweet Springs MO OVPLKSAK0MD  356H NETGENUITY INC. 524   2022-11-24   
660-557 2 Sweet Springs MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524   2020-07-10   
660-557 3 Sweet Springs MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524   2020-07-10   
660-557 5 Sweet Springs MO OVPLKSAK0MD  356H NETGENUITY INC. 524   2022-11-24   
660-557 6 Sweet Springs MO OVPLKSAK0MD  356H NETGENUITY INC. 524   2022-11-24   
660-557 7 Sweet Springs MO OVPLKSAK0MD  356H NETGENUITY INC. 524   2022-11-24   
660-557 8 Sweet Springs MO OVPLKSAK0MD  356H NETGENUITY INC. 524   2022-11-24   
660-557 9 Sweet Springs MO OVPLKSAK0MD  356H NETGENUITY INC. 524   2022-11-24   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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