Local Calling Guide

Area code/prefix search

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NPA: 781 [Rate centres in NPA 781] [Dial plan for NPA 781]

NXX: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-557 A Wakefield MA CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
781-557 0 Wakefield MA   145J TERRA NOVA TELECOM INC. 128   2024-12-28   
781-557 1 Wakefield MA   7135 TC SYSTEMS, INC. 128      
781-557 2 Wakefield MA   7135 TC SYSTEMS, INC. 128      
781-557 3 Wakefield MA   7135 TC SYSTEMS, INC. 128      
781-557 4 Wakefield MA   892D ONVOY, LLC - MA 128   2010-03-15   
781-557 5 Wakefield MA   892D ONVOY, LLC - MA 128   2012-03-22   
781-557 6 Wakefield MA   624H ONVOY SPECTRUM, LLC 128   2021-04-15   
781-557 7 Wakefield MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2016-10-28   
781-557 8 Wakefield MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-01-02   

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

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