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: 856

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-856 A Newport RI   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130      
401-856 4 Newport RI   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130   2013-04-10   
401-856 5 Newport RI   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130   2022-01-27   
401-856 6 Newport RI   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130   2022-01-27   
401-856 8 Newport RI PRVDRIWAXJY  977E ONVOY, LLC - RI 130   2024-09-14   
401-856 9 Newport RI   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 130      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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