WNNH airs an active rock radio format, as part of Binnie Media's "Bone" franchise.

WNNH first signed on the air in October 1989 from the Pats Peak Ski Area in Henniker, with studios on South Street in Concord.

[5][6] On April 27, 2009, it was announced that WNNH and WWHQ would be spun off into a divestiture trust and sold as part of a debt-for-equity restructuring of Nassau Broadcasting in which Goldman Sachs became 85% owner of the company.

The new ownership structure ended Nassau's grandfathered status with respect to how many stations in the Concord-Lakes Region market it could own.

[15] On April 1, 2019, WNNH again reinstated the Frank FM branding and the classic hits format, via a simulcast with sister station WFNQ out of Nashua, New Hampshire.

[17] On September 3, 2021, at 6 am, WNNH split from its simulcast with WLNH and launched an active rock format, branded as "99.1 The Bone".