Port 3202: IntraIntra — A Ghost Registration

What This Port Is

Port 3202 sits in the registered ports range (1024–49151). These ports are neither the famous well-known ports (0–1023) that require root privileges, nor the ephemeral ports (49152–65535) that operating systems hand out temporarily for outgoing connections. Registered ports are the middle tier — formally claimed from IANA by someone, for something.

Port 3202 was claimed. IANA lists it as intraintra — service name: IntraIntra — assigned for both TCP and UDP. ¹

That's where the trail ends.

The Ghost Assignment

A search for "IntraIntra" as a network service returns nothing. No documentation, no source code, no forum posts, no company claiming it. Whatever application was registered here either never shipped, was used internally and never publicized, or simply vanished. The IANA entry is a headstone without a grave.

This is more common than you might expect. The registered ports range contains thousands of entries. Some represent major protocols used by millions every day. Others are fossils — registered years ago by organizations or products that no longer exist, or never mattered beyond a small deployment.

Port 3202 appears to be the latter.

In Practice

Because "IntraIntra" is unknown and unused, port 3202 is effectively free real estate. If you encounter traffic on this port, it's most likely:

• A local application that picked an arbitrary port and landed here
• A misconfigured service that drifted from its expected port
• Something that shouldn't be running at all

No known malware families specifically target or use port 3202, and no widely deployed application has adopted it informally.

Checking What's Listening

If you want to see whether anything is using port 3202 on your system:

macOS / Linux:

lsof -i :3202

Windows:

netstat -ano | findstr :3202

If something shows up, the process ID at the end lets you trace it back to whatever application claimed the port.

Why Unassigned Ports Matter

The registered ports range exists so that applications don't collide — so two services don't accidentally pick the same port and fight over connections. When a port like 3202 sits dormant, that's fine. The port system doesn't run out of anything by leaving a number unused.

What matters is the pattern: when you see traffic on a port with no known assignment and no legitimate application to explain it, that absence of explanation is itself worth investigating.