119
nntp
TCP · 0x0077
Port 119 — nntp
Messaging
Port 119 carries Usenet news over TCP. Being at or below 1023, only root may open it on Unix. Its encrypted twin is 563.
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
- Usenet news (nntp)
- Kind
- Messaging
- Protocol
- TCP
- Range
- Well-known
- Root needed
- Yes
- Hexadecimal
- 0x0077
- Binary
- 0000000001110111
- Two bytes
- 0 · 119
- Encrypted twin
- 563
Same kind
Passing messages along, or queueing them up.
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 119 used for?
Usenet news (nntp) uses it, over TCP.
Q. Does opening port 119 need root?
Yes. It is at or below 1023, so on Unix only root may open it.
Q. Which range does port 119 fall in?
Well-known (0–1023). In hex it is 0x0077.
Q. Is there an encrypted version of port 119?
Port 563 does the same thing wrapped in TLS.