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: SLWBPASLDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
610-370 A Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 0 Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 1 Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 2 Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 3 Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 4 Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 5 Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      
610-370 9 Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      
610-406 A Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      
610-406 0 Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      
610-406 9 Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      
610-779 A Reading PA 9208 VERIZON PENNSYLVANIA, INC. 228      

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

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