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Port 5727 (asgenf)

IANA assigns port 5727 to asgenf: ASG Event Notification Framework.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
asgenf TCP ASG Event Notification Framework Arman Bedonian -

Registry dates for this port: registered 2009-07-15.

Check what is listening on port 5727

Linux: is anything listening on TCP 5727?
sudo ss -tlnp 'sport = :5727'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5727
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5727 '
Windows (Command Prompt)
netstat -ano | findstr :5727
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5727 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5727
From Windows
Test-NetConnection HOST -Port 5727

Block port 5727 in the firewall

ufw
sudo ufw deny 5727/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5727 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5727 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5727' -Direction Inbound -Protocol TCP -LocalPort 5727 -Action Block

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5725ms-ilm5726ms-ilm-sts5728io-dist-data, io-dist-group5729openmail

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