Port 10359 — Unassigned, Waiting

What Port 10359 Is

Port 10359 falls in the registered port range (1024–49151), which means it's been set aside by IANA for specific services upon application. Currently, no service is officially registered for it. ¹

Check the IANA Service Name and Transport Protocol Port Number Registry directly—port 10359 doesn't appear. It's unassigned.

What That Means

The registered range is where most application protocols live. When someone creates a new network service, they apply to IANA for a port number in this range, and it gets added to the official registry. Port 10359 never got a formal application. It just sits there.

This doesn't mean nothing runs on it. On your machine right now, some application might be listening on 10359. But there's no standard service there. No protocol specification. No RFC. Just empty space waiting to be claimed.

Known Uses

The most common reference to "10359" online is not a port at all—it's an Elphel model number for an optional multi-function circuit board for industrial cameras. ² That confusion happens more than you'd think; people search for numbers and get hardware specs, firmware versions, anything with matching digits.

Beyond that, nothing standard. If something is listening on 10359 on your network, it's either:

• A custom application
• Someone using an unassigned port because it was available
• A dynamic/ephemeral port that happened to land there

How to Check

On macOS/Linux:

lsof -i :10359
netstat -an | grep 10359
ss -ltnp | grep 10359

On Windows:

netstat -ano | find "10359"
Get-NetTCPConnection -LocalPort 10359 | Select-Object -Property State, OwningProcess

The first result will tell you if anything is listening. The OwningProcess ID can be matched back to the application using Task Manager or tasklist.

Why Unassigned Ports Matter

The port numbering system is finite. We have 65,535 TCP ports and 65,535 UDP ports. The well-known ports (0–1023) are tightly controlled—SSH is 22, HTTP is 80, HTTPS is 443. Everyone expects these numbers to mean what they say.

But above 1023, it gets looser. Registered ports should be registered, but enforcement is light. Ephemeral ports (49152–65535) are for temporary connections and aren't assigned to anything specific. Somewhere between "officially registered" and "throw anything here," ports like 10359 exist as quiet reminders that we're drawing lines on a number line and pretending they mean something absolute.

Unassigned ports matter because they show what the address space really is: not sacred, not sacred, just infrastructure built on collective agreement. Port 10359 is nobody's port, which makes it everybody's port—until someone cares enough to claim it.