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: 715

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-715 A Central Islip NY NYCMNYBXDS0  7140 TC SYSTEMS, INC. - NY 132      
631-715 0 Central Islip NY NYCMNYZRDBS  155E PEERLESS NETWORK OF NEW YORK, LLC - NY 132   2013-04-21   
631-715 1 Central Islip NY NYCMNYBXDS0  7140 TC SYSTEMS, INC. - NY 132      
631-715 2 Central Islip NY NYCMNYBXDS0  7140 TC SYSTEMS, INC. - NY 132      
631-715 3 Central Islip NY NYCMNYBXDS0  7140 TC SYSTEMS, INC. - NY 132      
631-715 5 Central Islip NY NYCMNYZRYMD  508J CENTURYLINK COMMUNICATIONS, LLC 132   2015-08-15   
631-715 6 Central Islip NY NYCMNYBXDS0  7140 TC SYSTEMS, INC. - NY 132      
631-715 7 Central Islip NY NYCMNYBXDS0  7140 TC SYSTEMS, INC. - NY 132      
631-715 8 Central Islip NY NYCMNYBXDS0  7140 TC SYSTEMS, INC. - NY 132      
631-715 9 Central Islip NY SYOSNYGNCM1  6622 OMNIPOINT COMMUNICATIONS, INC. - NY 132   2008-05-09   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.