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: 749

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-749 A Shelter Island NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-749 0 Shelter Island NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-749 1 Shelter Island NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-749 2 Shelter Island NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-749 3 Shelter Island NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-749 4 Shelter Island NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-749 5 Shelter Island NY BTHPNYGRDS1  7126 CABLEVISION LIGHTPATH, INC. - NY 132   2003-02-28   
631-749 6 Shelter Island NY NYCMNY83DSZ  4006 LEVEL 3 COMMUNICATIONS, LLC - NY 132   2005-12-16   
631-749 8 Shelter Island NY   1215 CORETEL NEW YORK, INC. - NY 132   2019-04-02   
631-749 9 Shelter Island NY HCVLNYAHDS1  7126 CABLEVISION LIGHTPATH, INC. - NY 132   2012-07-14   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.