Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 978 [Rate centres in NPA 978] [Dial plan for NPA 978]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-218 A Sudbury MA MRBOMAFZDS0  7135 TC SYSTEMS, INC. 128      
978-218 1 Sudbury MA   7135 TC SYSTEMS, INC. 128      
978-218 2 Sudbury MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-12-19   
978-218 4 Sudbury MA   2899 BROADVIEW NETWORKS, INC. - MA 128   2005-07-01   
978-218 5 Sudbury MA   7135 TC SYSTEMS, INC. 128      
978-218 6 Sudbury MA   316E YMAX COMMUNICATIONS CORP. - MA 128   2008-03-09   
978-218 7 Sudbury MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-07-13   
978-218 8 Sudbury MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2011-03-12   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.