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: 563

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-563 A Sterling MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
978-563 0 Sterling MA BSTPMALLZMD  506J TWILIO INTERNATIONAL, INC. 128   2020-12-19   
978-563 1 Sterling MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
978-563 2 Sterling MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128   2010-07-22   
978-563 3 Sterling MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2013-05-29   
978-563 4 Sterling MA BSTPMALLDS1  4536 XO MASSACHUSETS, INC. 128   2008-08-28   
978-563 5 Sterling MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2012-03-22   
978-563 6 Sterling MA CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2007-02-01   
978-563 7 Sterling MA BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2014-04-25   
978-563 8 Sterling MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-05   
978-563 9 Sterling MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2008-12-06   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.