Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 774 [Rate centres in NPA 774] [Dial plan for NPA 774]

NXX: 358

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-358 A Harwich MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
774-358 0 Harwich MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2018-09-20   
774-358 1 Harwich MA   892D ONVOY, LLC - MA 128   2018-04-07   
774-358 2 Harwich MA   892D ONVOY, LLC - MA 128   2021-02-27   
774-358 4 Harwich MA   318J COMCAST IP PHONE, LLC 128   2019-07-05   
774-358 5 Harwich MA   892D ONVOY, LLC - MA 128   2021-02-27   
774-358 6 Harwich MA   892D ONVOY, LLC - MA 128   2020-07-11   
774-358 7 Harwich MA   892D ONVOY, LLC - MA 128   2020-07-11   
774-358 8 Harwich MA   892D ONVOY, LLC - MA 128   2019-02-24   
774-358 9 Harwich MA   892D ONVOY, LLC - MA 128   2019-02-24   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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