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: 354

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-354 A Providence RI NPRVRIMSDS1  9102 VERIZON NEW ENGLAND INC. 130      
401-354 0 Providence RI   9102 VERIZON NEW ENGLAND INC. 130      
401-354 1 Providence RI   4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2008-05-16   
401-354 2 Providence RI   4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2005-03-16   
401-354 3 Providence RI   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130      
401-354 4 Providence RI   9102 VERIZON NEW ENGLAND INC. 130      
401-354 5 Providence RI   9102 VERIZON NEW ENGLAND INC. 130      
401-354 6 Providence RI   9102 VERIZON NEW ENGLAND INC. 130      
401-354 7 Providence RI   4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2008-05-16   
401-354 8 Providence RI   9102 VERIZON NEW ENGLAND INC. 130      
401-354 9 Providence RI   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2005-02-04   

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

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