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: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-257 A Cumberland Hill RI PRVDRIWAX1Y  3460 CTC COMMUNICATIONS CORP. - RI 130      
401-257 0 Cumberland Hill RI PRVDRIWAX1Y  3460 CTC COMMUNICATIONS CORP. - RI 130      
401-257 1 Cumberland Hill RI PRVDRIWAX1Y  3460 CTC COMMUNICATIONS CORP. - RI 130      
401-257 2 Cumberland Hill RI PRVDRIWAX1Y  3460 CTC COMMUNICATIONS CORP. - RI 130      
401-257 3 Cumberland Hill RI PRVDRIWAX1Y  3460 CTC COMMUNICATIONS CORP. - RI 130      
401-257 4 Cumberland Hill RI PRVDRIWAX1Y  4054 CONVERSENT COMMUNICATIONS OF RHODE ISLAND, LLC 130   2004-06-11   
401-257 5 Cumberland Hill RI EPRVRIELCM2  6664 SPRINT SPECTRUM, L.P. 130   2005-06-14   
401-257 6 Cumberland Hill RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2006-01-02   
401-257 7 Cumberland Hill RI PRVDRINW4MD  4016 LEVEL 3 COMMUNICATIONS, LLC - RI 130   2004-09-02   
401-257 8 Cumberland Hill RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 130   2015-10-24   
401-257 9 Cumberland Hill RI EPRVRIELCM2  6889 OMNIPOINT MIAMI E LICENSE, LLC DBA T-MOBILE USA 130   2007-03-01   

Last updated: Fri, 13 May 2022 22:16:13 UTC

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