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: 637

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-637 A Shrewsbury MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
774-637 0 Shrewsbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-09   
774-637 1 Shrewsbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-09   
774-637 2 Shrewsbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-09   
774-637 3 Shrewsbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-09   
774-637 4 Shrewsbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-09   
774-637 8 Shrewsbury MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128   2022-04-02   
774-637 9 Shrewsbury MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2023-03-26   

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

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