Local Calling Guide

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NPA: 774 [Rate centres in NPA 774] [Dial plan for NPA 774]

NXX: 378

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-378 A Wrentham MA FRMNMAUNCMD  7135 TC SYSTEMS, INC. 128      
774-378 0 Wrentham MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2023-01-23   
774-378 1 Wrentham MA   624H ONVOY SPECTRUM, LLC 128   2022-02-05   
774-378 2 Wrentham MA   624H ONVOY SPECTRUM, LLC 128   2022-02-05   
774-378 3 Wrentham MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2025-11-19   
774-378 5 Wrentham MA   624H ONVOY SPECTRUM, LLC 128   2021-04-15   
774-378 6 Wrentham MA   7135 TC SYSTEMS, INC. 128   2018-11-22   
774-378 7 Wrentham MA   892D ONVOY, LLC - MA 128   2021-03-11   
774-378 8 Wrentham MA   892D ONVOY, LLC - MA 128   2021-03-11   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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