Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130      
401-234 0 Greenwich RI   4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2005-02-15   
401-234 1 Greenwich RI   4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2005-02-10   
401-234 2 Greenwich RI   003F BANDWIDTH.COM CLEC, LLC - RI 130   2012-05-04   
401-234 3 Greenwich RI   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2014-11-10   
401-234 4 Greenwich RI   4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2003-08-20   
401-234 5 Greenwich RI   829J PAETEC ITEL, LLC 130   2014-06-03   
401-234 6 Greenwich RI   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2014-11-10   
401-234 7 Greenwich RI   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2017-03-24   
401-234 8 Greenwich RI   631G PEERLESS NETWORK OF RHODE ISLAND, LLC - RI 130   2015-09-25   
401-234 9 Greenwich RI   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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