Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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 NYCMNYBXYMD  4152 PAETEC COMMUNICATIONS, INC. - NY 132      
631-574 0 Riverhead NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132      
631-574 1 Riverhead NY NYCMNYBXYMD  4152 PAETEC COMMUNICATIONS, INC. - NY 132      
631-574 2 Riverhead NY NYCMNYBXYMD  4152 PAETEC COMMUNICATIONS, INC. - NY 132      
631-574 3 Riverhead NY NYCMNYBXYMD  4152 PAETEC COMMUNICATIONS, INC. - NY 132      
631-574 4 Riverhead NY NYCMNYBXYMD  4152 PAETEC COMMUNICATIONS, INC. - NY 132      
631-574 5 Riverhead NY SYOSNYGNCM1  5562 METROPCS, INC. 132      
631-574 6 Riverhead NY NYCMNYBXYMD  4152 PAETEC COMMUNICATIONS, INC. - NY 132      
631-574 7 Riverhead NY GCPKNYAIGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132      
631-574 8 Riverhead NY BTHPNYGRDS0  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-574 9 Riverhead NY GCPKNYAIGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 132      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.