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: MSTCNYMCDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
631-281 A Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-395 A Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-399 A Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-399 0 Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-399 1 Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-399 2 Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-399 3 Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-399 4 Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-399 5 Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-399 6 Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-399 7 Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-399 9 Atlantic NY 9104 VERIZON NEW YORK, INC. 132      
631-874 A Center Moriches NY 9104 VERIZON NEW YORK, INC. 132      
631-878 A Center Moriches NY 9104 VERIZON NEW YORK, INC. 132      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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