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: 264

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-264 A Portsmouth RI PRVDRIUFDS1  7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      
401-264 0 Portsmouth RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130   2008-11-27   
401-264 1 Portsmouth RI   829J PAETEC ITEL, LLC 130   2002-09-29   
401-264 2 Portsmouth RI   145J TERRA NOVA TELECOM INC. 130   2021-09-24   
401-264 6 Portsmouth RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2008-07-29   
401-264 8 Portsmouth RI EPRVRINBDS2  631G PEERLESS NETWORK OF RHODE ISLAND, LLC - RI 130   2015-10-22   
401-264 9 Portsmouth RI PRVDRIUFDS1  7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.