Hosts
Servers are special computers with the purpose of hosting at least one zone. A list of active zones is also maintained here.
SFSS
SFSS is run by Awestrike. Despite missing the SSC in the server prefix, all active zones are connected to the SSC biller, as showen by a suffix.
SSCC
SSCC is run by Testtube, who also is the sysop of SSCC Metal Gear.
SSCI and SSI
Subspace International is run by 1stStrike and Argyle, and has a server located in the southwest US, and also on the eastern US coast. SSI runs its own biller available to any zone, whether or not hosted by SSI.
SSCU
Subspace Europe was located in Europe and has been around for quite some time. Currently there are few SSCU zones remaining, 17th Parallel has moved to a new server in northern Virginia, and Trench Wars is located in Atlanta, Georgia. Both are maintained by Priit Kasesalu.
SSCX
Subspace Exodus is run by both Yarekim and Xalimar. Zones on this powerful server located in the western US, with the privilege of being on the SSC Network, thus the absence of any SSX prefix. All zones on the SSCX prefix are offered Powerbot for their own use.
SSN
Subspace Network is run by L. Chance and is located in Britain.
SSZ
Subspace Network, run by Jericho24. and Lord Assassin, is a non-SSC network. Typically it hosts developing and startup zones hoping to succeed in the Subspace world.
T3
The T3 server is run by Mecbot+ and hosts only one zone, T3 The Gauntlet.
SSDT
SubSpace David Tombs is a development zone server hosted by Cyan~Fire. It is by no means a powerful server, but is one of the few servers that will accept any zone with at least some good plans for development.