Port 1184 sits in the registered ports range (1024-49151) with an official assignment to a service called llsurfup-https (LL Surfup HTTPS). And that's about all anyone can tell you about it.
What We Know
According to IANA's official registry1, port 1184 is assigned to llsurfup-https for both TCP and UDP protocols. The service name suggests it was meant for HTTPS communication related to something called "LL Surfup," possibly a secure web surfing or proxy service.
That's where the trail goes cold. There's no documentation. No active software claiming this port. No RFC explaining what problem it solved. Just a name in a registry.
The Registered Ports Range
Port 1184 belongs to the registered ports range—numbers between 1024 and 49151 that IANA assigns to specific services upon request. Unlike well-known ports (0-1023) which require IETF review, registered ports follow a lighter approval process.
This means anyone with a legitimate networking service can request a port number. IANA grants it. The service gets listed in the official registry. And sometimes—like with port 1184—the service disappears while the registration remains.
What Actually Uses This Port
In practice? Probably nothing. Port 1184 is effectively unassigned in the real world, even though it's technically registered.
If you find something listening on port 1184, it's likely:
- A misconfigured application using a random high port
- Custom internal software that happened to pick 1184
- Malware taking advantage of an obscure, rarely-monitored port
Why This Matters
Port 1184 tells a story the Internet doesn't often acknowledge: not every door gets used.
IANA maintains over 49,000 registered port assignments. Many of them—maybe most—point to services that never achieved widespread adoption, or died quietly when their companies folded, or were replaced by better protocols.
These ghost ports aren't wasted. They're the Internet's historical record. They mark attempts, experiments, ideas that seemed important enough to warrant official registration. Some succeeded. Some didn't. Port 1184 appears to be one that didn't.
Checking What's Listening
If you want to see if anything is actually using port 1184 on your system:
On Linux or macOS:
On Windows:
If you see something listening and you don't recognize it, investigate. Obscure ports are sometimes attractive to malware precisely because they're not commonly monitored.
The Honest Answer
Port 1184 is registered but effectively abandoned. It exists in records, not in practice. It's a reminder that the port number system isn't just about what's running today—it's about what someone, somewhere, once thought might be important enough to reserve a number for.
Most of the Internet flows through a few dozen ports. The other 65,000 wait quietly, just in case.
האם דף זה היה מועיל?