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: 861

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-861 A Topsfield MA   892D ONVOY, LLC - MA 128      
978-861 0 Topsfield MA BSTPMALLOMD  073H TELNYX LLC 128   2017-05-04   
978-861 1 Topsfield MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
978-861 3 Topsfield MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2012-03-22   
978-861 5 Topsfield MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-07-10   
978-861 7 Topsfield MA BSTPMALL5MD  508J CENTURYLINK COMMUNICATIONS, LLC 128   2014-04-24   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.