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.
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Switch: DRMTPADORP1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
412-306 A Pittsburgh Zone 6 PA 9208 VERIZON PENNSYLVANIA, INC. 234      
412-341 A Pittsburgh Zone 6 PA 9208 VERIZON PENNSYLVANIA, INC. 234      
412-343 A Pittsburgh Zone 6 PA 9208 VERIZON PENNSYLVANIA, INC. 234      
412-344 A Pittsburgh Zone 6 PA 9208 VERIZON PENNSYLVANIA, INC. 234      
412-388 A Pittsburgh Zone 6 PA 9208 VERIZON PENNSYLVANIA, INC. 234      
412-531 A Pittsburgh Zone 6 PA 9208 VERIZON PENNSYLVANIA, INC. 234      
412-561 A Pittsburgh Zone 6 PA 9208 VERIZON PENNSYLVANIA, INC. 234      
412-563 A Pittsburgh Zone 6 PA 9208 VERIZON PENNSYLVANIA, INC. 234      
412-571 A Pittsburgh Zone 6 PA 9208 VERIZON PENNSYLVANIA, INC. 234      
412-572 A Pittsburgh Zone 6 PA 9208 VERIZON PENNSYLVANIA, INC. 234      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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