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: 405

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-405 A Cumberland Hill RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130      
401-405 0 Cumberland Hill RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130      
401-405 1 Cumberland Hill RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130   2009-02-08   
401-405 2 Cumberland Hill RI PRVDRIGRXAX  4029 PAETEC COMMUNICATIONS, INC. - RI 130   2009-04-06   
401-405 3 Cumberland Hill RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130   2008-08-26   
401-405 4 Cumberland Hill RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130   2010-03-07   
401-405 5 Cumberland Hill RI PRVDRIWAHAA  9248 BROADVIEW NETWORKS, INC. - RI 130   2004-12-13   
401-405 6 Cumberland Hill RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2006-10-27   
401-405 7 Cumberland Hill RI   145J TERRA NOVA TELECOM INC. 130   2020-11-14   
401-405 8 Cumberland Hill RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2015-10-24   
401-405 9 Cumberland Hill RI PRVDRIWALMD  506J TWILIO INTERNATIONAL, INC. 130   2020-12-21   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.