Local Calling Guide

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

NXX: 717

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-717 A Winchester MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
781-717 0 Winchester MA   829J PAETEC ITEL, LLC 128   2002-10-13   
781-717 1 Winchester MA   829J PAETEC ITEL, LLC 128   2005-06-02   
781-717 2 Winchester MA   7619 RCN TELECOM SERVICES, INC. - MA 128      
781-717 3 Winchester MA   321J HD CARRIER LLC 128   2016-09-03   
781-717 4 Winchester MA   321J HD CARRIER LLC 128   2016-04-16   
781-717 5 Winchester MA   321J HD CARRIER LLC 128   2016-04-16   
781-717 6 Winchester MA   321J HD CARRIER LLC 128   2016-04-16   
781-717 7 Winchester MA   321J HD CARRIER LLC 128   2016-04-16   
781-717 8 Winchester MA   7619 RCN TELECOM SERVICES, INC. - MA 128      
781-717 9 Winchester MA   515J IP HORIZON LLC 128   2016-07-01   

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

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