mastodon.opportunis.me is one of the many independent Mastodon servers you can use to participate in the fediverse.
An instance for people speaking English or French. It works on the principle of cooptation: if you know someone who is already registered, they can invite you.

Server stats:

32
active users

RT @AlterMundiNet@twitter.com

Estamos haciendo historia‼️

La red de internet está conectada la Red Federal de Fibra Óptica de @ARSATSA@twitter.com y la vuela 🚀

🐦🔗: twitter.com/AlterMundiNet/stat