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: 336

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-336 A Greenwich RI PRVDRIUFDS1  7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      
401-336 0 Greenwich RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2021-10-02   
401-336 1 Greenwich RI PRVDRIUFDS1  7351 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 130      
401-336 2 Greenwich RI   829J PAETEC ITEL, LLC 130   2004-12-01   
401-336 3 Greenwich RI PRVDRIWAHMD  318J COMCAST IP PHONE, LLC 130   2009-08-26   
401-336 4 Greenwich RI EPRVRINB1MD  939H COMMIO, LLC 130   2022-12-11   
401-336 5 Greenwich RI PRVDRIWAXJY  977E ONVOY, LLC - RI 130   2016-03-21   
401-336 6 Greenwich RI PRVDRIWAXJY  977E ONVOY, LLC - RI 130   2016-03-21   
401-336 7 Greenwich RI PRVDRIWAXJY  977E ONVOY, LLC - RI 130   2023-08-09   
401-336 8 Greenwich RI   829J PAETEC ITEL, LLC 130   2004-04-16   
401-336 9 Greenwich RI   6889 OMNIPOINT MIAMI E LICENSE, LLC 130   2025-09-25   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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