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: 664

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-664 A North Swansea MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
774-664 2 North Swansea MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128   2022-03-01   
774-664 6 North Swansea MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-03   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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