Port 4480
agtp and agtp-quic · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | agtp and agtp-quic |
| Registered | 2026-04-30 |
Frequently asked questions
What is port 4480 used for?
Port 4480 is registered with the IANA for agtp and agtp-quic (TCP/UDP). Description: Agent Transfer Protocol; Agent Transfer Protocol over QUIC.
Is port 4480 a well-known port?
No. Port 4480 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 4480 is open?
Locally on Linux with ss -tulpn | grep ':4480\b', on Windows with netstat -ano | findstr :4480. To test a remote host use Test-NetConnection <host> -Port 4480 in PowerShell or nc -zv <host> 4480 on Linux/macOS.
How do I open port 4480 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 4480/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4480/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4480" -Direction Inbound -Protocol TCP -LocalPort 4480 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | agtp | Agent Transfer Protocol |
| UDP | agtp-quic | Agent Transfer Protocol over QUIC |