[1][2] TREX was preceded by some local private peering arrangements between its initial members since the 1990s.

TREX is a member of the European Internet Exchange Association.

This differs from many other IXPs which are associations that Internet operators join as members in order to connect and exchange traffic.

For example, TREX provides public Teredo server and relay and NAT64 test services as a result of some past and present research projects.

The idea is to develop new services that an exchange point can provide to its member networks.