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: 781

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-781 A Lowell MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2026-02-19   
978-781 0 Lowell MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2026-02-19   
978-781 1 Lowell MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2026-02-19   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.