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.

NPA: 937 [Rate centres in NPA 937] [Dial plan for NPA 937]

NXX: 999

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
937-999 A Dayton OH DYTNOH22XLY  600F CBTS TECHNOLOGY SOLUTIONS LLC - OH 328      
937-999 0 Dayton OH DYTNOH22XLY  600F CBTS TECHNOLOGY SOLUTIONS LLC - OH 328   2011-02-07   
937-999 1 Dayton OH DYTNOH22X6Y  001F BANDWIDTH.COM CLEC LLC - OH 328   2011-05-20   
937-999 2 Dayton OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2011-04-01   
937-999 3 Dayton OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2011-04-01   
937-999 4 Dayton OH DYTNOH22XRY  547D TIME WARNER CABLE INFORMATION SVCS (OHIO) - OH 328   2012-07-05   
937-999 5 Dayton OH DYTNOH22XRY  547D TIME WARNER CABLE INFORMATION SVCS (OHIO) - OH 328   2012-07-05   
937-999 6 Dayton OH DYTNOH22XCY  3765 CHOICE ONE COMMUNICATIONS, INC. - OH 328   2012-02-09   
937-999 7 Dayton OH DYTNOH22X8Z  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 328   2011-05-24   
937-999 8 Dayton OH DYTNOH22X8Z  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 328   2011-05-24   
937-999 9 Dayton OH DYTNOH22X8Z  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 328   2011-05-24   

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.