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: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-428 A Braintree MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
781-428 0 Braintree MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2012-08-17   
781-428 1 Braintree MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2012-08-17   
781-428 2 Braintree MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
781-428 3 Braintree MA NWTNMAWAVMD  318J COMCAST IP PHONE LLC 128   2012-06-02   
781-428 4 Braintree MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2013-02-10   
781-428 5 Braintree MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2013-10-31   
781-428 6 Braintree MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2013-10-31   
781-428 7 Braintree MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2008-02-01   
781-428 8 Braintree MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
781-428 9 Braintree MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2010-09-11   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.