Port 2264: Unassigned — A Registered Port Nobody Claimed

Port 2264 belongs to the registered port range (1024–49151). No official service owns it. IANA's registry lists it as unassigned.

What the Registered Range Means

Port numbers are divided into three neighborhoods:

• Well-known ports (0–1023): Reserved for foundational protocols — HTTP on 80, HTTPS on 443, SSH on 22. These require root privileges to bind on Unix systems.
• Registered ports (1024–49151): Available for applications to claim by registering with IANA. Thousands of services have done exactly this: databases, game servers, enterprise software, proprietary protocols.
• Dynamic/ephemeral ports (49152–65535): Assigned temporarily by the operating system for outgoing connections. No registration needed or expected.

Port 2264 sits in the registered range — the neighborhood where organizations file paperwork to formally associate a port number with their protocol. Port 2264 never got that paperwork.

Any Known Unofficial Uses?

Nothing documented. Port 2264 doesn't appear in security advisories as a common malware beacon, doesn't show up as a standard configuration in major software, and hasn't accumulated the kind of informal recognition that some unassigned ports develop over time.

If you see port 2264 open on a system, it's almost certainly application-specific — something configured explicitly, not something that "just happens."

What to Do If You See Port 2264 Open

If a network scan or audit flags port 2264, the question is the same as any unassigned port: what process bound to it, and why?

On Linux/macOS:

# Show what process is listening on port 2264
ss -tlnp | grep 2264

# Alternative using lsof
lsof -i :2264

On Windows:

# Show listening processes with their port numbers
netstat -ano | findstr :2264

# Then look up the PID
Get-Process -Id <PID>

If you get a result, you'll see the process name. From there, check whether that application is expected to be running and whether it should be listening on that port.

Why Unassigned Ports Matter

The registered range has room for about 48,000 ports. Thousands are claimed. Thousands more — like 2264 — are not.

This creates a practical reality: software that needs a default port sometimes picks an unassigned one without registering. It works fine until two pieces of software on the same machine both pick the same "available" number. That conflict is the entire reason IANA registration exists.

An unassigned port isn't broken or dangerous by definition. It's just unclaimed territory — available for legitimate use, invisible to automated expectations, and worth investigating if you didn't put it there yourself.