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: 558

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-558 A Greenwich RI   829J PAETEC ITEL, LLC 130      
401-558 0 Greenwich RI   829J PAETEC ITEL, LLC 130      
401-558 1 Greenwich RI   829J PAETEC ITEL, LLC 130      
401-558 2 Greenwich RI   829J PAETEC ITEL, LLC 130      
401-558 3 Greenwich RI   829J PAETEC ITEL, LLC 130      
401-558 4 Greenwich RI   829J PAETEC ITEL, LLC 130      
401-558 5 Greenwich RI   977E ONVOY, LLC - RI 130   2024-03-08   
401-558 6 Greenwich RI   073H TELNYX LLC 130   2024-03-29   
401-558 7 Greenwich RI   003F BANDWIDTH.COM CLEC, LLC - RI 130   2021-10-25   
401-558 8 Greenwich RI   6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2022-12-09   
401-558 9 Greenwich RI   829J PAETEC ITEL, LLC 130      

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

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