Port 60787 — Unassigned Dynamic Port

What Port 60787 Is

Port 60787 is an unassigned port in the dynamic/ephemeral range (49152–65535). This range is not controlled by IANA. It belongs to no one. It's the space where applications go to create temporary connections without reservation or registration.

The Dynamic Port Range

The range 49152–65535 exists for these purposes:¹

• Ephemeral ports: Automatically allocated by the operating system for outgoing client connections. Your browser, your email client, your SSH session—they don't ask for port 443 or 22 on the client side. They grab an ephemeral port from this range.
• Private/custom services: Applications that need a port but aren't significant enough (or permanent enough) to register with IANA use ports here.
• Temporary protocols: Services that live and die within a session, or services that exist only on your machine.

The reason this range exists is elegantly simple: so thousands of simultaneous connections don't collide. Each client connection gets a unique, temporary port that lasts only as long as the connection does, then evaporates.²

What's Actually Using Port 60787?

There is one documented use: Asterisk (the open-source VoIP and telephony platform) has been observed listening on UDP 60787, though which specific Asterisk module uses it remains undocumented.³

Beyond that, port 60787 is silent in the official record. Whatever might be listening on your machine at port 60787 right now—a background service, a development server, a peer-to-peer connection, a database replica—it's there because some application chose to use it, not because IANA assigned it.

How to Check What's Listening on Port 60787

If you want to know what's actually using this port on your system:

On Linux/macOS:

sudo lsof -i :60787
sudo ss -tulpn | grep 60787
netstat -an | grep 60787

On Windows:

netstat -ano | findstr 60787

Replace 60787 with the specific port number. The output will show the process ID (PID) and application name using that port.

Why Unassigned Ports Matter

Ports 0–1023 are "well-known"—officially assigned by IANA to specific, permanent services. Ports 1024–49151 are "registered"—assigned to applications that asked for them. Ports 49152–65535 are the free frontier.

This division is what allows the Internet to scale. If every temporary connection, every local service, every development test had to be registered, the system would collapse. Instead, the dynamic range is the exhale of the Internet—where applications breathe, experiment, and then disappear.

Port 60787 might never listen on your machine. It might be listening right now on hundreds of machines simultaneously, for hundreds of different purposes. That's not chaos. That's design.