The secret contact information for Tribe BBS hosted by Sternone was:

Tribe Bulletin Board System - Sternone
Hoogledestraat 92
8610 Kortemark
BELGIUM
Modem: +32-51-570-513

You got logged on to that private board using a Unix-ish console.
Credentials were root:root for recruits.

Nowadays the number belongs to a fax number, more info here:
http://www.bsearch.be/bedrijfsinfo/2/4033001687083250/G10/SE/desimpel-kortemark-industries-kortemark-en.html