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
283-300 A Middletown OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2026-03-21   
283-300 0 Middletown OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2026-03-21   
283-300 1 Middletown OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2026-05-21   
283-300 2 Middletown OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2026-06-20   
283-300 3 Middletown OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2026-07-20   
326-201 4 Mount Orab OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2024-03-09   
326-204 A Dayton OH 490J BOOST SUBSCRIBERCO L.L.C. 328      
326-204 9 Dayton OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2022-02-11   
326-220 5 Dayton OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2025-03-27   
326-220 6 Dayton OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2025-08-23   
326-225 1 Gratis OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2024-10-24   
326-231 2 Springfield OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2025-07-21   
326-239 6 Dayton OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2025-12-22   
326-239 7 Dayton OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2026-01-26   
326-239 8 Dayton OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2026-03-21   
326-239 9 Dayton OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2026-05-20   
326-758 5 Jamestown OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2025-09-08   
326-758 9 Jamestown OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2023-07-01   
513-650 8 Middletown OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2023-05-06   
513-963 4 Middletown OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2025-07-28   
937-566 7 Wilmington OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2022-12-16   
937-634 0 Gratis OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2023-02-27   
937-717 7 Springfield OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2022-05-21   
937-757 5 West Manchester OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2023-09-25   
937-757 6 West Manchester OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2026-01-01   
937-761 0 Troy OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2022-07-31   
937-772 0 Urbana OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2022-12-15   
937-794 1 Piqua OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2022-05-21   
937-799 8 Versailles OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2023-02-27   
937-915 9 Laura OH 490J BOOST SUBSCRIBERCO L.L.C. 328   2023-02-27   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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