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Port 13894 (ucontrol)

IANA assigns port 13894 to ucontrol: Ultimate Control communication protocol.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ucontrol TCP Ultimate Control communication protocol NEGU Soft -
ucontrol UDP Ultimate Control communication protocol NEGU Soft -

Registry dates for this port: registered 2012-09-10.

Check what is listening on port 13894

Linux: is anything listening on TCP 13894?
sudo ss -tlnp 'sport = :13894'
Linux: UDP 13894
sudo ss -ulnp 'sport = :13894'
Linux / macOS: which process owns the port
sudo lsof -nP -i :13894
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':13894 '
Windows (Command Prompt)
netstat -ano | findstr :13894
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 13894 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 13894
From Windows
Test-NetConnection HOST -Port 13894
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 13894

Block port 13894 in the firewall

ufw
sudo ufw deny 13894/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 13894 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 13894 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 13894' -Direction Inbound -Protocol TCP -LocalPort 13894 -Action Block
ufw
sudo ufw deny 13894/udp
iptables
sudo iptables -A INPUT -p udp --dport 13894 -j DROP
nftables
sudo nft add rule inet filter input udp dport 13894 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 13894' -Direction Inbound -Protocol UDP -LocalPort 13894 -Action Block

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13823bmdss13832a-trust-rpc13929dta-systems13930medevolve

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