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: 973

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-973 A Lynnfield MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-973 0 Lynnfield MA   4536 XO MASSACHUSETTS, INC. 128      
781-973 1 Lynnfield MA   4536 XO MASSACHUSETTS, INC. 128      
781-973 2 Lynnfield MA   4536 XO MASSACHUSETTS, INC. 128   2005-07-29   
781-973 3 Lynnfield MA   4536 XO MASSACHUSETTS, INC. 128   2005-07-29   
781-973 4 Lynnfield MA   4536 XO MASSACHUSETTS, INC. 128      
781-973 8 Lynnfield MA   073H TELNYX LLC 128   2017-05-04   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.