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: 527

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-527 A Cohasset MA BSTNMALBDS1  7135 TC SYSTEMS, INC. 128      
781-527 0 Cohasset MA   515J IP HORIZON LLC 128   2015-10-26   
781-527 1 Cohasset MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-04-07   
781-527 2 Cohasset MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2014-12-01   
781-527 3 Cohasset MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-10-28   
781-527 4 Cohasset MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-03-15   
781-527 5 Cohasset MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2012-03-15   
781-527 6 Cohasset MA BSTNMALBDS1  7135 TC SYSTEMS, INC. 128      
781-527 7 Cohasset MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-01-22   
781-527 8 Cohasset MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-01-16   
781-527 9 Cohasset MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-04-07   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.