HTTPfy

Port 3926 (winport)

IANA assigns port 3926 to winport: WINPort.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
winport TCP WINPort Alwin Egger -
winport UDP WINPort Alwin Egger -

Registry dates for this port: registered 2003-11.

Check what is listening on port 3926

Linux: is anything listening on TCP 3926?
sudo ss -tlnp 'sport = :3926'
Linux: UDP 3926
sudo ss -ulnp 'sport = :3926'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3926
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3926 '
Windows (Command Prompt)
netstat -ano | findstr :3926
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3926 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3926
From Windows
Test-NetConnection HOST -Port 3926
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3926

Block port 3926 in the firewall

ufw
sudo ufw deny 3926/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3926 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3926 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3926' -Direction Inbound -Protocol TCP -LocalPort 3926 -Action Block
ufw
sudo ufw deny 3926/udp
iptables
sudo iptables -A INPUT -p udp --dport 3926 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3926 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3926' -Direction Inbound -Protocol UDP -LocalPort 3926 -Action Block

Related ports

3924mpl-gprs-port3925zmp3927natdataservice3928netboot-pxe

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