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: 244

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-244 A Warwick RI PRVDRIUFDS1  7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      
401-244 0 Warwick RI   003F BANDWIDTH.COM CLEC, LLC - RI 130   2026-10-02   
401-244 1 Warwick RI PRVDRIUFDS1  7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      
401-244 2 Warwick RI PRVDRIWAX8Z  829J PAETEC ITEL, LLC 130   2004-04-19   
401-244 3 Warwick RI PRVDRIWAXAZ  829J PAETEC ITEL, LLC 130   2004-12-16   
401-244 4 Warwick RI PRVDRIWA3MD  073H TELNYX LLC 130   2017-04-20   
401-244 5 Warwick RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2005-09-05   
401-244 6 Warwick RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130   2007-04-13   
401-244 7 Warwick RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2008-01-31   
401-244 8 Warwick RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2008-02-15   
401-244 9 Warwick RI PRVDRIUFDS1  7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.