Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 617 [Rate centres in NPA 617] [Dial plan for NPA 617]

NXX: 781

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-781 A Dorchester MA SOVLMAAB6MD  939H COMMIO, LLC 128   2024-04-13   
617-781 0 Dorchester MA SOVLMAAB6MD  939H COMMIO, LLC 128   2024-04-13   
617-781 1 Dorchester MA SOVLMAAB6MD  939H COMMIO, LLC 128   2024-04-13   
617-781 2 Dorchester MA SOVLMAAB6MD  939H COMMIO, LLC 128   2024-04-13   
617-781 6 Dorchester MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2024-12-06   
617-781 7 Dorchester MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2024-12-06   
617-781 8 Dorchester MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2024-12-06   
617-781 9 Dorchester MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2025-02-19   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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