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: 992

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-992 A Wellesley MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
781-992 1 Wellesley MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2023-07-25   
781-992 2 Wellesley MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-09-03   
781-992 3 Wellesley MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
781-992 4 Wellesley MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
781-992 5 Wellesley MA CHTWMABF2MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128   2005-04-03   
781-992 6 Wellesley MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2023-07-25   
781-992 7 Wellesley MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2023-07-25   
781-992 8 Wellesley MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2023-07-25   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.