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: WLPTPAWIDS0

Remotes:

Switch Switch name Switch type
HPVLPAHERS1  HEPBURNVILLE  5ER 
MUVLPAESRS1  MONTOURSVILLE  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
570-320 A Williamsport PA 9208 VERIZON PENNSYLVANIA, INC. 232      
570-321 A Williamsport PA 9208 VERIZON PENNSYLVANIA, INC. 232      
570-322 A Williamsport PA 9208 VERIZON PENNSYLVANIA, INC. 232      
570-323 A Williamsport PA 9208 VERIZON PENNSYLVANIA, INC. 232      
570-326 A Williamsport PA 9208 VERIZON PENNSYLVANIA, INC. 232      
570-327 A Williamsport PA 9208 VERIZON PENNSYLVANIA, INC. 232      
570-329 A Williamsport PA 9208 VERIZON PENNSYLVANIA, INC. 232      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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