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: 234

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-234 A Greenwich RI PRVDRICEDS0  7231 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - RI 130      
401-234 0 Greenwich RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2005-02-15   
401-234 1 Greenwich RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2005-02-10   
401-234 2 Greenwich RI EPRVRINB9MD  003F BANDWIDTH.COM CLEC, LLC - RI 130   2012-05-04   
401-234 3 Greenwich RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2014-11-10   
401-234 4 Greenwich RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2003-08-20   
401-234 5 Greenwich RI PRVDRIWAXLY  4029 PAETEC COMMUNICATIONS, INC. - RI 130   2014-06-03   
401-234 6 Greenwich RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2014-11-10   
401-234 7 Greenwich RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2017-03-24   
401-234 8 Greenwich RI EPRVRINBDS2  631G PEERLESS NETWORK OF RHODE ISLAND, LLC - RI 130   2015-09-25   
401-234 9 Greenwich RI PRVDRICEDS0  7231 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - RI 130      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.