HTTPfy

Port 3922 (sor-update)

IANA assigns port 3922 to sor-update: Soronti Update Port.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
sor-update TCP Soronti Update Port Carleton Watkins -
sor-update UDP Soronti Update Port Carleton Watkins -

Registry dates for this port: registered 2003-11.

Check what is listening on port 3922

Linux: is anything listening on TCP 3922?
sudo ss -tlnp 'sport = :3922'
Linux: UDP 3922
sudo ss -ulnp 'sport = :3922'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3922
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3922 '
Windows (Command Prompt)
netstat -ano | findstr :3922
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3922 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3922
From Windows
Test-NetConnection HOST -Port 3922
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3922

Block port 3922 in the firewall

ufw
sudo ufw deny 3922/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3922 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3922 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3922' -Direction Inbound -Protocol TCP -LocalPort 3922 -Action Block
ufw
sudo ufw deny 3922/udp
iptables
sudo iptables -A INPUT -p udp --dport 3922 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3922 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3922' -Direction Inbound -Protocol UDP -LocalPort 3922 -Action Block

Related ports

3920exasoftport13921herodotus-net3923symb-sb-port3924mpl-gprs-port

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.