Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 339 [Rate centres in NPA 339] [Dial plan for NPA 339]

NXX: 674

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
339-674 A Medford MA   829J PAETEC ITEL, LLC 128      
339-674 0 Medford MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-09-11   
339-674 1 Medford MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-27   
339-674 2 Medford MA   829J PAETEC ITEL, LLC 128      
339-674 3 Medford MA   829J PAETEC ITEL, LLC 128      
339-674 4 Medford MA   892D ONVOY, LLC - MA 128   2012-03-18   
339-674 5 Medford MA   316E YMAX COMMUNICATIONS CORP. - MA 128   2009-07-24   
339-674 6 Medford MA   892D ONVOY, LLC - MA 128   2013-01-11   
339-674 7 Medford MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-06-05   
339-674 8 Medford MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2012-04-12   
339-674 9 Medford MA   829J PAETEC ITEL, LLC 128   2001-12-25   

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

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