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: 364

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-364 A Lowell MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
978-364 0 Lowell MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-364 1 Lowell MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2009-05-11   
978-364 2 Lowell MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-364 3 Lowell MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
978-364 4 Lowell MA   515J IP HORIZON LLC 128      
978-364 5 Lowell MA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128   2005-04-03   
978-364 6 Lowell MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2014-08-16   
978-364 7 Lowell MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-04-10   
978-364 8 Lowell MA   515J IP HORIZON LLC 128      
978-364 9 Lowell MA   892D ONVOY, LLC - MA 128      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.