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: 774 [Rate centres in NPA 774] [Dial plan for NPA 774]

NXX: 266

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
774-266 A Mansfield MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
774-266 0 Mansfield MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2002-08-30   
774-266 1 Mansfield MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2003-08-27   
774-266 2 Mansfield MA CMBRMABEX0Y  6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 128   2005-02-07   
774-266 3 Mansfield MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2003-12-19   
774-266 4 Mansfield MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2006-09-01   
774-266 5 Mansfield MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2008-04-04   
774-266 6 Mansfield MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2005-03-04   
774-266 7 Mansfield MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2013-04-01   
774-266 8 Mansfield MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-03-18   
774-266 9 Mansfield MA SOVLMAAB2MD  966G LOCAL ACCESS LLC - MA 128   2015-03-26   

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.