Official servers

Address (click to join)	Status	Name	Players
unitedponyrepublic.eu:27015	ONLINE	{UPR} Celestia's Pony Sandbox [Wiremod|PAC|LFS|Achievements]	0/32
unitedponyrepublic.eu:27016	OFFLINE	{UPR} Celestia's Pony Celestia	N/A
unitedponyrepublic.eu:27017	OFFLINE	{UPR} Celestia's Pony DarkRP	N/A
unitedponyrepublic.eu:27018	ONLINE	{UPR} Celestia's Pony Stranded [Pony playermodels]	0/16

Unofficial and testing servers

Address (click to join)	Status	Name	Players
unitedponyrepublic.eu:27025	OFFLINE	{UPR} Unofficial Gamemode Testing Server	N/A
unitedponyrepublic.eu:27030	ONLINE	{UPR} Celestia's testing/debugging server	0/8
unitedponyrepublic.eu:27031	OFFLINE	{UPR} Celestia's testing/debugging server #2 (PonyWars)	N/A
unitedponyrepublic.eu:27032	OFFLINE	{UPR} Celestia's Pony Spacebuild	N/A
unitedponyrepublic.eu:27033	OFFLINE	{UPR} Celestia's testing/debugging server #3 (DarkRP)	N/A
unitedponyrepublic.eu:27040	OFFLINE	{UPR} Celestia's TF2 Server	N/A

Servers hosted by us

Address (click to join)	Status	Name	Players
unitedponyrepublic.eu:27019	OFFLINE	[Half - Life 2 Campaign]-[Main - Server]	N/A

Info from Gmod-Servers.com (delayed by up to 5 minutes)