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: DYTNOH22XTY

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
937-830 A Dayton OH 6529 T-MOBILE USA, INC. 328      
937-831 A Springfield OH 6529 T-MOBILE USA, INC. 328      
937-838 A Dayton OH 6529 T-MOBILE USA, INC. 328      
937-869 A Urbana OH 6664 SPRINT SPECTRUM, L.P. 328      
937-875 A Troy OH 6664 SPRINT SPECTRUM, L.P. 328      
937-877 A Tipp City OH 6664 SPRINT SPECTRUM, L.P. 328      
937-931 A Dayton OH 6529 T-MOBILE USA, INC. 328      
937-951 A Dayton OH 6529 T-MOBILE USA, INC. 328      
937-960 A Trotwood OH 6664 SPRINT SPECTRUM, L.P. 328      
937-993 A Dayton OH 6529 T-MOBILE USA, INC. 328      

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Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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