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: 781 [Rate centres in NPA 781] [Dial plan for NPA 781]

NXX: 334

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-334 A Lynnfield MA LYFDMACARP0  9102 VERIZON NEW ENGLAND INC. 128      
781-334 0 Lynnfield MA   9102 VERIZON NEW ENGLAND INC. 128      
781-334 1 Lynnfield MA   892D ONVOY, LLC - MA 128   2023-07-23   
781-334 2 Lynnfield MA   9102 VERIZON NEW ENGLAND INC. 128      
781-334 3 Lynnfield MA   9102 VERIZON NEW ENGLAND INC. 128      
781-334 4 Lynnfield MA   9102 VERIZON NEW ENGLAND INC. 128      
781-334 5 Lynnfield MA   9102 VERIZON NEW ENGLAND INC. 128      
781-334 6 Lynnfield MA   9102 VERIZON NEW ENGLAND INC. 128      
781-334 7 Lynnfield MA   9102 VERIZON NEW ENGLAND INC. 128      
781-334 8 Lynnfield MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-02-22   
781-334 9 Lynnfield MA   9102 VERIZON NEW ENGLAND INC. 128      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.