25565
minecraft
TCP · 0x63DD
Port 25565 — minecraft
Others
Port 25565 carries Minecraft server over TCP. Above 1023, so an ordinary user can open it.
1024–49151. Meant to be applied for, though some numbers here are custom by habit.
By custom · Not a registered number but one settled by habit. Another program may well have taken it first.
Where it sits in 65535
A port number is 16 bits, so it stops at 65535. The narrow band at the left is everything up to 1023.
065535
- Service
- Minecraft server (minecraft)
- Kind
- Others
- Protocol
- TCP
- Range
- Registered
- Root needed
- No
- Hexadecimal
- 0x63DD
- Binary
- 0110001111011101
- Two bytes
- 99 · 221
Same kind
Time, printing, play — the ones that fit nowhere else.
Ports next to it
How to read this
- A port number is 16 bits, so it runs 0 to 65535. There is no port 65536.
- Opening anything at or below 1023 needs root on Unix.
- Plain and encrypted often live on different numbers — 80 and 443, for one.
- Numbers like 3000 and 8080 were never registered; those are marked as custom.
Frequently asked questions
Q. What is port 25565 used for?
Minecraft server (minecraft) uses it, over TCP.
Q. Does opening port 25565 need root?
No. It is above 1023, so an ordinary user can open it.
Q. Which range does port 25565 fall in?
Registered (1024–49151). In hex it is 0x63DD.
Q. Does port 25565 have a twin?
Not a separate one. It either was encrypted from the start or negotiates TLS on the same number.