Port 3403
no service name · –
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | – |
| Service | no service name |
| Modified | 2006-10-27 |
Frequently asked questions
What is port 3403 used for?
Port 3403 is registered with the IANA for no service name (–). Description: De-registered.
Is port 3403 a well-known port?
No. Port 3403 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 3403 is open?
Locally on Linux with ss -tulpn | grep ':3403\b', on Windows with netstat -ano | findstr :3403. To test a remote host use Test-NetConnection <host> -Port 3403 in PowerShell or nc -zv <host> 3403 on Linux/macOS.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| – | De-registered |