Local Calling Guide

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NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

NXX: 422

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-422 A South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-422 0 South Boston MA BSTPMALLOMD  073H TELNYX LLC 128   2021-11-22   
857-422 1 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2024-03-07   
857-422 2 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-08-14   
857-422 3 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-08-14   
857-422 4 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-08-14   
857-422 5 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-08-14   
857-422 6 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2022-09-29   
857-422 7 South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2022-09-29   
857-422 8 South Boston MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-11-27   
857-422 9 South Boston MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-11-27   

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

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