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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
878-281 A Finleyville (Washington) PA 547E ONVOY, LLC - PA 234      
878-282 A Republic PA 547E ONVOY, LLC - PA 234      
878-283 A Uniontown (Fayette) PA 547E ONVOY, LLC - PA 234      
878-284 A Rochester PA 547E ONVOY, LLC - PA 234      
878-286 A Jeannette PA 547E ONVOY, LLC - PA 234      
878-333 A Ellwood City PA 547E ONVOY, LLC - PA 234      
878-378 A West Newton PA 547E ONVOY, LLC - PA 234      
878-400 A Wampum PA 547E ONVOY, LLC - PA 234      
878-444 A Homer City PA 547E ONVOY, LLC - PA 234      
878-477 A Charleroi PA 547E ONVOY, LLC - PA 234      
878-666 A Marion Center PA 547E ONVOY, LLC - PA 234      
878-777 A Derry PA 547E ONVOY, LLC - PA 234      
878-847 A New Kensington PA 547E ONVOY, LLC - PA 234      
878-870 A Farmington PA 547E ONVOY, LLC - PA 234      
878-879 A New Kensington PA 547E ONVOY, LLC - PA 234      
878-880 A Washington PA 547E ONVOY, LLC - PA 234      
878-881 A Brownsville PA 547E ONVOY, LLC - PA 234      
878-884 A Greensburg PA 547E ONVOY, LLC - PA 234      
878-887 A Paris PA 547E ONVOY, LLC - PA 234      
878-888 A Parkwood PA 547E ONVOY, LLC - PA 234      
878-900 A East Palestine PA 547E ONVOY, LLC - PA 234      
878-978 A Pittsburgh Zone 1 PA 547E ONVOY, LLC - PA 234      
878-999 A Pittsburgh Zone 1 PA 547E ONVOY, LLC - PA 234      

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

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