554
rtsp
TCP and UDP · 0x022A
Port 554 — rtsp
Others
Port 554 carries Streaming control over TCP and UDP. Being at or below 1023, only root may open it on Unix.
0–1023. On Unix only root may open one.
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
- Streaming control (rtsp)
- Kind
- Others
- Protocol
- TCP and UDP
- Range
- Well-known
- Root needed
- Yes
- Hexadecimal
- 0x022A
- Binary
- 0000001000101010
- Two bytes
- 2 · 42
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
QWhat is port 554 used for?
Streaming control (rtsp) uses it, over both TCP and UDP.
QDoes opening port 554 need root?
Yes. It is at or below 1023, so on Unix only root may open it.
QWhich range does port 554 fall in?
Well-known (0–1023). In hex it is 0x022A.
QDoes port 554 have a twin?
Not a separate one. It either was encrypted from the start or negotiates TLS on the same number.