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Unstable SMP

Unstable SMP 1.21.1+ AS,EU,NA,AU
IP: unstablesmp.one

Server Information

Server IP
unstablesmp.one
Port25565
StatusOnline checked 21 min ago
EditionJava
Players8,870 / 14,000
Version1.26
Uptime99%
7-day peak9,190
Average players8,337
Rank#10 of 9,962 live servers
Votes0
RatingNo reviews yet
Country Germany
Response time1,668 ms
Listed since2026-10-08
MOTDUnstable SMP 1.21.1+ AS,EU,NA,AU
#1of 1,092 in Germany#5of 1,333 in SMP ranked by the most players seen in the last 7 days

What it runs on

Hosting companyFlorian Kolb AS58087
Machine location Frankfurt am Main (Innenstadt I), Hesse, Germany
Resolves to109.71.252.111

IP location data: DB-IP

Cross-play
This server answers Java only
Our probe got no reply on the Bedrock port, so Java is the only edition we can confirm. Owners do sometimes add cross-play later — we re-check daily.

You reach Unstable SMP, a Minecraft Java server, at the address unstablesmp.one. We list it under SMP. It reports itself as version 1.26.

8,870 players were connected at our last check. Over the past week it has averaged 8,337 players and peaked at 9,190. That places it #10 of the 9,962 live servers we track. It answered 99% of our pings this week.

The machine answers from Germany.

Players — last 7 days

9,0870

Player history

5 days recorded
2026-10-082026-10-12
Show the day-by-day numbers
DayAverage PeakUptime
2026-10-128,5209,13493%
2026-10-118,4419,144100%
2026-10-108,4639,181100%
2026-10-098,2289,188100%
2026-10-087,9348,46097%

Best time to play

00:0006:0012:0018:0023:00

Busiest around 06:00 UTC, with roughly 8,552 players. Quietest around 09:00 UTC, at about 7,941.

Average players per hour from our own pings over the last seven days, in UTC.

How to join a Minecraft Java server

Open Minecraft Java Edition → Multiplayer → Add Server. Paste the IP unstablesmp.one, name it anything, click Done, then Join. Java servers use port 25565 by default, so you usually only need the address.

Questions about this server

What is the IP address for Unstable SMP?

The address for Unstable SMP is unstablesmp.one. In Minecraft Java Edition choose Multiplayer, then Add Server, and paste it into the Server Address box.

Is Unstable SMP online right now?

Yes. Unstable SMP replied to our ping with 8,870 players connected. We last reached it at 2026-10-12 10:04 UTC and we re-check every five minutes.

What Minecraft version does Unstable SMP run?

Unstable SMP reports version 1.26. Matching your client to that version is the usual fix when a server refuses the connection.

Can Java and Bedrock players both join Unstable SMP?

No. Unstable SMP only answered on Java when we tested it, so Bedrock players cannot use this address. We repeat the test daily and will update this page if that changes.

How many players are on Unstable SMP?

8,870 at our last ping. The seven-day average is 8,337 and the highest we have recorded in that window is 9,190. The chart further up this page shows how that number moves through the day.

When is the best time to play on Unstable SMP?

Around 06:00 UTC, when we typically count about 8,552 players. That is the busiest hour we have measured on Unstable SMP over the last seven days.

Where is Unstable SMP hosted?

The address for Unstable SMP resolves to a machine in Germany. Players far from there should expect a longer round trip, which usually shows up as delayed block breaking rather than as a disconnect.

Is Unstable SMP free to join?

Yes, joining Unstable SMP costs nothing beyond owning Minecraft. Some servers additionally allow offline-mode accounts and some do not — the server decides that, and we do not resell anything.

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Unstable SMP Minecraft Java server

The image is drawn when it loads, so the player count and the online light are current every time somebody sees it.

<a href="https://servers.9minecraft.net/server/unstable-smp"><img src="https://servers.9minecraft.net/banner/unstable-smp.png" alt="Unstable SMP Minecraft Java server" width="468" height="60"></a>
[url=https://servers.9minecraft.net/server/unstable-smp][img]https://servers.9minecraft.net/banner/unstable-smp.png[/img][/url]

JSON status

https://servers.9minecraft.net/api/server/unstable-smp.json

Returns the same numbers this page shows: status, players, version, uptime and the cross-play result. Cached for one minute.

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Checked 2026-10-12 10:04 UTC — player counts come from our own pings, not the owner.

How to join
Server address
Port

Click a field to copy it.

  1. Open Minecraft: Java Edition on your PC.
  2. Click Multiplayer → Add Server.
  3. Paste the address above into Server Address. Name it anything, then click Done.
  4. Select the server and click Join Server.

Java uses port 25565 by default. If the port above is 25565 you do not need to type it — the address alone is enough.