Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 351 [Rate centres in NPA 351] [Dial plan for NPA 351]

NXX: 221

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
351-221 A Lowell MA SOVLMAAB6MD  939H COMMIO, LLC 128      
351-221 0 Lowell MA SOVLMAAB6MD  939H COMMIO, LLC 128   2021-11-20   
351-221 1 Lowell MA SOVLMAAB6MD  939H COMMIO, LLC 128   2021-11-20   
351-221 2 Lowell MA SOVLMAAB6MD  939H COMMIO, LLC 128   2021-11-20   
351-221 3 Lowell MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-09-24   
351-221 4 Lowell MA SOVLMAAB6MD  939H COMMIO, LLC 128   2024-03-04   
351-221 5 Lowell MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-01-22   
351-221 6 Lowell MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2022-01-22   
351-221 7 Lowell MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2022-12-18   
351-221 8 Lowell MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2022-12-18   
351-221 9 Lowell MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2021-12-02   

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

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