Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 631 [Rate centres in NPA 631] [Dial plan for NPA 631]

NXX: 574

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-574 A Riverhead NY   829J PAETEC ITEL, LLC 132      
631-574 0 Riverhead NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132   2014-09-26   
631-574 1 Riverhead NY   829J PAETEC ITEL, LLC 132      
631-574 2 Riverhead NY   829J PAETEC ITEL, LLC 132      
631-574 3 Riverhead NY   829J PAETEC ITEL, LLC 132      
631-574 4 Riverhead NY   829J PAETEC ITEL, LLC 132      
631-574 5 Riverhead NY   5562 METROPCS, INC. 132   2006-02-04   
631-574 6 Riverhead NY   829J PAETEC ITEL, LLC 132      
631-574 7 Riverhead NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132   2006-08-18   
631-574 8 Riverhead NY   7126 CABLEVISION LIGHTPATH, INC. - NY 132   2001-10-09   
631-574 9 Riverhead NY   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132   2022-02-25   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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