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: 339 [Rate centres in NPA 339] [Dial plan for NPA 339]

NXX: 463

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
339-463 A Braintree MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
339-463 0 Braintree MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2022-09-05   
339-463 1 Braintree MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-09   
339-463 2 Braintree MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-09   
339-463 3 Braintree MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-09   
339-463 4 Braintree MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-09   
339-463 5 Braintree MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-08-09   
339-463 6 Braintree MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2024-03-09   
339-463 7 Braintree MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128   2022-04-15   
339-463 8 Braintree MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2023-10-28   
339-463 9 Braintree MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2024-04-17   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.