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: 992

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
937-992 A Wilmington OH WLMGOHXBPS0  0615 FRONTIER NORTH, INC. - OH 328      
937-992 0 Wilmington OH WLMGOHXBPS0  0615 FRONTIER NORTH, INC. - OH 328   2016-05-21   
937-992 1 Wilmington OH DYTNOH22X0Z  6529 T-MOBILE USA, INC. 328   2017-09-08   
937-992 2 Wilmington OH DYTNOH22X0Z  6529 T-MOBILE USA, INC. 328   2017-09-08   
937-992 3 Wilmington OH DYTNOH22X0Z  6529 T-MOBILE USA, INC. 328   2017-09-08   
937-992 4 Wilmington OH DYTNOH22X0Z  6529 T-MOBILE USA, INC. 328   2021-02-14   

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.