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: 366

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-366 A Portsmouth RI PRVDRIWAX1Y  4054 CONVERSENT COMMUNICATIONS OF RHODE ISLAND, LLC 130      
401-366 1 Portsmouth RI   145J TERRA NOVA TELECOM INC. 130      
401-366 2 Portsmouth RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130      
401-366 3 Portsmouth RI PRVDRIWAHAA  9248 BROADVIEW NETWORKS, INC. - RI 130      
401-366 4 Portsmouth RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130      
401-366 5 Portsmouth RI   490J DISH WIRELESS, LLC 130      
401-366 6 Portsmouth RI PRVDRIWAX1Y  4054 CONVERSENT COMMUNICATIONS OF RHODE ISLAND, LLC 130      
401-366 7 Portsmouth RI   490J DISH WIRELESS, LLC 130      
401-366 8 Portsmouth RI   977E ONVOY, LLC - RI 130      
401-366 9 Portsmouth RI   977E ONVOY, LLC - RI 130      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.