April 1991: first humanitarian missions of the founders of Télécoms Sans Frontières (TSF) with organisations SOS Action Humanitaire and Solidarité Pyrénéenne.

1991-1998 : more than 50 humanitarian missions as volunteers in Bosnia, Croatia, Iraq and Albania.

June 1998 : Creation of the concept of "humanitarian calling operations" for civilians affected by humanitarian crises. First calling operations with SOS action humanitaire.

July 1998 : Creation of Télécoms Sans Frontières

April 1999 : First official mission of TSF and first calling operation of TSF in Albania.

November 2001 : Opening of the first TSF Telecom Centre for the humanitarian community using satellite communications. Mazâr-e charif, Northern Afghanistan.

September 2002 : TSF becomes the Telecom Partner of the European Commission’s Aid Department (ECHO).

April 2003 : First mission under the European Commission’s (ECHO) mandate. Bagdad, Iraq.

October 2003 : TSF opens its base for the Americas in Managua, Nicaragua.

January 2004 : TSF opens its base for Asia in Bangkok, Thailand. The opening of the regional bases enables interventions worldwide within 24 hours. These bases also enable to maintain close relationships with local emergency actors.

October 2006 : TSF signs the first worldwide partnership between a Non-Governmental Organisation and the United Nations agencies OCHA and UNICEF. TSF also becomes First Responder of the Emergency Telecoms Cluster.