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: 287

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-287 A Woburn MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-287 0 Woburn MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-287 1 Woburn MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-287 2 Woburn MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-09   
781-287 4 Woburn MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-287 5 Woburn MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-287 6 Woburn MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-287 7 Woburn MA   318J COMCAST IP PHONE, LLC 128      
781-287 8 Woburn MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-287 9 Woburn MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128   2011-06-29   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.