Do-it-yourself global wifi network Fon has recently passed the 1 million member milestone, the company said this week.

The open wifi champion, which was established in Spain, said it now has more than 400,000 registered Fon hotspots in over 150 countries.

The concept behind Fon is based on the idea that anybody with a broadband subscription can join the network by purchasing a Fon router. This router then enables members to share their internet connection securely with the Fon community and roam on all member hotspots for free in return.

Several high profile companies, such as BT in the UK, Neuf Cegetel in France, Comstar in Russia, and ZON in Portugal have also partnered with the grassroots movement, embedding Fon sharing functionality in their own wifi routers.