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

About This Tool

This page provides original, human-reviewed information about network ports such as port 3389, the Network Port Reference and related concepts. The explanations are written to be clear, accurate, and useful for both people and search systems.

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