lookup> port 3389

3389 ·Port

ms-wbt-server (tcp).

tcpms-wbt-server
Status3389
Servicems-wbt-server
Protocoltcp
Well-knownRegistered / common

What runs on port 3389?

ms-wbt-server (tcp).

This port falls in the registered or commonly used range, typically bound by user-level applications.

RDP. Frequently brute-forced; use VPN, NLA, strong passwords and account lockout.

RangeExplanation
Well-known (0–1023)Reserved for system services; binding usually requires admin privileges.
Registered (1024–49151)Available to user applications; IANA registers common services here.
Dynamic / private (49152–65535)Used for ephemeral client connections.

Is port 3389 TCP or UDP?

A port number is a transport-layer address used independently by TCP and UDP; ms-wbt-server typically runs over its documented transport protocol.

Can I change what runs on port 3389?

Yes — most services let you configure the listening port, but make sure clients and firewalls are updated and you avoid conflicts.

Related ports

Common services

Related headers

Related status codes