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: 636

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
401-636 A Woonsocket RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130      
401-636 0 Woonsocket RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130      
401-636 1 Woonsocket RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130      
401-636 2 Woonsocket RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130      
401-636 3 Woonsocket RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2012-08-24   
401-636 4 Woonsocket RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2013-11-14   
401-636 5 Woonsocket RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2015-10-14   
401-636 6 Woonsocket RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2016-03-25   
401-636 7 Woonsocket RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130      
401-636 8 Woonsocket RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2015-12-31   
401-636 9 Woonsocket RI PRVDRIWAWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 130   2012-02-01   

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

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