What Port 10358 Is
Port 10358 has no official designation. The Internet Assigned Numbers Authority (IANA) has not assigned a service to it. No RFC describes it. No major application or protocol claims it.
It lives in the registered port range (1024–49151), which means it's available for assignment but currently unused at the official level. 1
Why This Matters
The port system has about 65,000 slots. The first 1,024 (0–1,023) are "well-known ports"—reserved for essential protocols that everyone knows: HTTP, SMTP, DNS, SSH. These are the named places.
The registered range (1,024–49,151) holds thousands of assignments—everything from database servers to specialized industrial protocols. But there are still gaps. Port 10358 is a gap.
These gaps serve a purpose. When a company creates a new application and needs a port number, they apply to IANA for registration. Port 10358 might be the answer someday. Or it might stay empty forever, used only by internal networks running proprietary services.
How to Find Out What's Using Port 10358
If you're seeing traffic on port 10358, something local to your network is using it. It's not official, so the answer lives in your system:
On Linux/macOS:
On Windows:
Network-wide:
If port 10358 is listening, something on that machine decided to use it. No authority approved it. No registry documents it. Someone just chose the number.
The Gap in the System
Unassigned ports are where the Internet's future is written. Every new protocol, every microservice, every internal tool starts by claiming an unassigned port. Some become official (and join the registry). Most stay dark—used by one company, one team, in one corner of one network.
Port 10358 is an invitation. For now, it's silent. That's the honest answer.
Related Reading
- IANA Service Name and Transport Protocol Port Number Registry
- List of TCP and UDP port numbers — Wikipedia
- Understanding the Port Number System
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