Port 10562 — Unassigned, But Claimed

What This Port Is

Port 10562 falls in the registered port range (1024-49151), which IANA designates for vendor-specific or custom application use. Unlike well-known ports (1-1023) assigned to standardized services like HTTP or SSH, these middle-ground ports are supposed to register their services with IANA—but registration and actual use diverge constantly.

Port 10562 has no official IANA registration. The registry doesn't claim it. But the Internet doesn't care about claims it hasn't filed.

Known Unofficial Use

Port 10562 appears most commonly in ThingsBoard Professional Edition IoT deployments. ¹ ThingsBoard's TCP Integration typically defaults to port 10560 for incoming TCP connections from IoT devices, but administrators can configure it to use alternative ports like 10562 when there are conflicts or custom network requirements. ²

In that context, port 10562 is essentially a bridge: devices connect here via TCP, send their data, and ThingsBoard translates it into messages the platform understands. It's integration plumbing—unglamorous, specific to one platform, but critical for that platform's operation.

How to Check What's Listening

To see what (if anything) is actually using port 10562 on your system:

On macOS or Linux:

lsof -i :10562
netstat -an | grep 10562
ss -tlnp | grep 10562

On Windows (PowerShell):

Get-NetTCPConnection -LocalPort 10562
netstat -ano | findstr :10562

Network-wide port scan:

nmap -p 10562 <target-host>

If you get results, you'll see what process is listening. If nothing appears, the port is silent—unassigned and unclaimed, like most of them.

Why Unassigned Ports Matter

The registered port range (1024-49151) is where the Internet's actual diversity lives. It contains:

• Vendor-specific services — Custom databases, monitoring tools, proprietary platforms (like ThingsBoard)
• Research protocols — Academic experiments that never became standards
• Internal-only services — Things running only inside corporate networks
• Dead registrations — Services that existed, got assigned, then disappeared
• The future — Protocols not yet standardized, waiting in this limbo

Ports like 10562 highlight a fundamental truth: the Internet's official structures (RFCs, IANA registries, standards bodies) document what should exist. But the actual network runs on thousands of unregistered, undocumented, proprietary solutions that keep specific systems running.

Port 10562 doesn't have a spec. It exists because someone needed to move IoT data from one place to another, and TCP port 10562 was available. That's all the authority it needs.