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: CRLSPAXCXHX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
223-252 A McAlisterville PA 547E ONVOY, LLC - PA 226      
223-273 A Allensville PA 547E ONVOY, LLC - PA 226   2024-01-22   
223-277 A Belleville PA 547E ONVOY, LLC - PA 226   2024-01-22   
223-283 A Elizabethtown PA 547E ONVOY, LLC - PA 226   2024-01-22   
223-288 A Blain PA 547E ONVOY, LLC - PA 226   2024-01-22   
223-319 A Marietta PA 547E ONVOY, LLC - PA 226      
223-328 A Thompsontown PA 547E ONVOY, LLC - PA 226      
223-364 A Elizabethtown PA 547E ONVOY, LLC - PA 226   2024-07-30   
223-423 A Ickesburg PA 547E ONVOY, LLC - PA 226      

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

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