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: 644

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-644 A Riverhead NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132      
631-644 0 Riverhead NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132      
631-644 1 Riverhead NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132      
631-644 2 Riverhead NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132      
631-644 3 Riverhead NY SYOSNYGNCM1  5562 METROPCS, INC. 132      
631-644 4 Riverhead NY SYOSNYGNCM1  5562 METROPCS, INC. 132      
631-644 5 Riverhead NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132      
631-644 6 Riverhead NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132      
631-644 7 Riverhead NY GNBGNY01AMD  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 132      
631-644 8 Riverhead NY   515J IP HORIZON LLC 132      
631-644 9 Riverhead NY SYOSNYGNCM1  5562 METROPCS, INC. 132      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.