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: 477

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-477 A Greenport (Suffolk) NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-477 0 Greenport (Suffolk) NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-477 1 Greenport (Suffolk) NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-477 2 Greenport (Suffolk) NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-477 3 Greenport (Suffolk) NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-477 4 Greenport (Suffolk) NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-477 5 Greenport (Suffolk) NY BTHPNYGRDS0  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-477 6 Greenport (Suffolk) NY HCVLNYAHDS1  7126 CABLEVISION LIGHTPATH, INC. - NY 132      
631-477 7 Greenport (Suffolk) NY   1215 CORETEL NEW YORK, INC. - NY 132      
631-477 8 Greenport (Suffolk) NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      
631-477 9 Greenport (Suffolk) NY GPTSNYGPDS0  9104 VERIZON NEW YORK, INC. 132      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.