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: 481

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-481 A Princeton MA WRCSMACEX1X  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
978-481 0 Princeton MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2013-05-04   
978-481 2 Princeton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-05-14   
978-481 3 Princeton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-03   
978-481 4 Princeton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-06-13   
978-481 5 Princeton MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2006-05-26   
978-481 6 Princeton MA WRCSMACEX1X  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
978-481 7 Princeton MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-08-26   
978-481 8 Princeton MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2012-03-19   
978-481 9 Princeton MA   515J IP HORIZON LLC 128   2015-10-30   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.