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Port 6602 (wsscomfrmwk)

IANA assigns port 6602 to wsscomfrmwk: Windows WSS Communication Framework.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
wsscomfrmwk TCP Windows WSS Communication Framework Rong Yu -

Registry dates for this port: registered 2010-08-10.

Check what is listening on port 6602

Linux: is anything listening on TCP 6602?
sudo ss -tlnp 'sport = :6602'
Linux / macOS: which process owns the port
sudo lsof -nP -i :6602
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':6602 '
Windows (Command Prompt)
netstat -ano | findstr :6602
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 6602 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 6602
From Windows
Test-NetConnection HOST -Port 6602

Block port 6602 in the firewall

ufw
sudo ufw deny 6602/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 6602 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 6602 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 6602' -Direction Inbound -Protocol TCP -LocalPort 6602 -Action Block

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