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: 401 [Rate centres in NPA 401] [Dial plan for NPA 401]

NXX: 667

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-667 A North Kingstown RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130      
401-667 0 North Kingstown RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130      
401-667 1 North Kingstown RI PRVDRIWAXJY  977E ONVOY, LLC - RI 130   2023-08-09   
401-667 2 North Kingstown RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130   2004-01-08   
401-667 3 North Kingstown RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130   2004-01-08   
401-667 4 North Kingstown RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130   2004-01-08   
401-667 5 North Kingstown RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130   2007-04-13   
401-667 6 North Kingstown RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130   2011-11-06   
401-667 7 North Kingstown RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130      
401-667 8 North Kingstown RI   829J PAETEC ITEL, LLC 130   2004-04-19   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.