Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 631 [Rate centres in NPA 631] [Dial plan for NPA 631]

NXX: 399

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
631-399 A Atlantic NY MSTCNYMCDS0  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 8 Atlantic NY   145J TERRA NOVA TELECOM INC. 132   2025-07-07   
631-399 9 Atlantic NY   9104 VERIZON NEW YORK, INC. 132      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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