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.

Switch: HMBYNYHBDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
631-723 A Hampton Bays NY 9104 VERIZON NEW YORK, INC. 132      
631-723 0 Hampton Bays NY 9104 VERIZON NEW YORK, INC. 132      
631-723 1 Hampton Bays NY 9104 VERIZON NEW YORK, INC. 132      
631-723 2 Hampton Bays NY 9104 VERIZON NEW YORK, INC. 132      
631-723 3 Hampton Bays NY 9104 VERIZON NEW YORK, INC. 132      
631-723 4 Hampton Bays NY 9104 VERIZON NEW YORK, INC. 132      
631-723 5 Hampton Bays NY 9104 VERIZON NEW YORK, INC. 132      
631-723 7 Hampton Bays NY 9104 VERIZON NEW YORK, INC. 132      
631-728 A Hampton Bays NY 9104 VERIZON NEW YORK, INC. 132      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.