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: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-457 A Lexington MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-457 0 Lexington MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-457 1 Lexington MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-457 2 Lexington MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-457 3 Lexington MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-457 4 Lexington MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-457 5 Lexington MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-457 6 Lexington MA   318J COMCAST IP PHONE LLC 128   2015-08-11   
781-457 7 Lexington MA CHTWMABMDS3  2899 BROADVIEW NETWORKS, INC. - MA 128   2007-05-17   
781-457 8 Lexington MA WOBNMACGCMD  6664 SPRINT SPECTRUM L.P. 128   2011-10-14   
781-457 9 Lexington MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128   2005-07-22   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.