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: 230

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-230 A Providence RI PRVDRIWAHAA  9248 BROADVIEW NETWORKS, INC. - RI 130      
401-230 0 Providence RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2003-11-30   
401-230 1 Providence RI PRVDRIWAHAA  9248 BROADVIEW NETWORKS, INC. - RI 130   2002-10-11   
401-230 2 Providence RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2003-10-07   
401-230 3 Providence RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2003-10-07   
401-230 4 Providence RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2003-10-07   
401-230 5 Providence RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2003-10-07   
401-230 6 Providence RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2004-09-20   
401-230 7 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2004-12-27   
401-230 8 Providence RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2003-11-01   
401-230 9 Providence RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2004-06-10   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.