Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 978 [Rate centres in NPA 978] [Dial plan for NPA 978]

NXX: 309

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-309 A Rockport MA   829J PAETEC ITEL, LLC 128      
978-309 0 Rockport MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2007-08-03   
978-309 1 Rockport MA   829J PAETEC ITEL, LLC 128   2004-02-07   
978-309 2 Rockport MA   892D ONVOY, LLC - MA 128   2010-03-15   
978-309 3 Rockport MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-03   
978-309 5 Rockport MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-06-27   
978-309 6 Rockport MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-05-26   
978-309 8 Rockport MA   318J COMCAST IP PHONE, LLC 128   2006-10-31   
978-309 9 Rockport MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   

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

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