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: 479

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-479 A Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130      
401-479 0 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2012-02-13   
401-479 1 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2014-04-15   
401-479 2 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2017-11-16   
401-479 3 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2017-11-30   
401-479 4 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2017-12-14   
401-479 5 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2017-12-28   
401-479 6 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2014-06-01   
401-479 7 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2014-06-01   
401-479 8 Providence RI PRVDRICEAMD  6389 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 130   2018-11-08   
401-479 9 Providence RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2012-10-09   

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.