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: 516

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-516 A Waltham MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-516 0 Waltham MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-516 1 Waltham MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-516 2 Waltham MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-516 3 Waltham MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-516 4 Waltham MA   990E BANDWIDTH.COM CLEC, LLC - MA 128      
781-516 5 Waltham MA   506J TWILIO INTERNATIONAL INC 128   2020-12-19   
781-516 6 Waltham MA   892D ONVOY, LLC - MA 128   2021-03-28   
781-516 7 Waltham MA   892D ONVOY, LLC - MA 128   2021-03-28   
781-516 8 Waltham MA   892D ONVOY, LLC - MA 128   2021-03-28   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.