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: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-256 A Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130      
401-256 0 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2007-02-05   
401-256 1 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2007-05-07   
401-256 2 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2007-05-07   
401-256 3 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2007-05-07   
401-256 4 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2007-05-07   
401-256 5 Providence RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2007-05-24   
401-256 6 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2007-07-05   
401-256 7 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2007-07-05   
401-256 8 Providence RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2007-05-11   
401-256 9 Providence RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2007-05-11   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.