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Port 7626 (simco, De-registered)

IANA assigns port 7626 to simco, De-registered: SImple Middlebox COnfiguration (SIMCO) Server.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
simco TCP SImple Middlebox COnfiguration (SIMCO) Server - RFC 4540
- UDP De-registered - -
simco SCTP SImple Middlebox COnfiguration (SIMCO) Sebastian Kiesel -

Registry dates for this port: registered 2006-01.

Check what is listening on port 7626

Linux: is anything listening on TCP 7626?
sudo ss -tlnp 'sport = :7626'
Linux: UDP 7626
sudo ss -ulnp 'sport = :7626'
Linux / macOS: which process owns the port
sudo lsof -nP -i :7626
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':7626 '
Windows (Command Prompt)
netstat -ano | findstr :7626
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 7626 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 7626
From Windows
Test-NetConnection HOST -Port 7626
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 7626

Block port 7626 in the firewall

ufw
sudo ufw deny 7626/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 7626 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 7626 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 7626' -Direction Inbound -Protocol TCP -LocalPort 7626 -Action Block
ufw
sudo ufw deny 7626/udp
iptables
sudo iptables -A INPUT -p udp --dport 7626 -j DROP
nftables
sudo nft add rule inet filter input udp dport 7626 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 7626' -Direction Inbound -Protocol UDP -LocalPort 7626 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.