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Port 2764 (data-insurance)

IANA assigns port 2764 to data-insurance: Data Insurance.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
data-insurance TCP Data Insurance Brent Irwin -
data-insurance UDP Data Insurance Brent Irwin -

Check what is listening on port 2764

Linux: is anything listening on TCP 2764?
sudo ss -tlnp 'sport = :2764'
Linux: UDP 2764
sudo ss -ulnp 'sport = :2764'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2764
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2764 '
Windows (Command Prompt)
netstat -ano | findstr :2764
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2764 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2764
From Windows
Test-NetConnection HOST -Port 2764
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2764

Block port 2764 in the firewall

ufw
sudo ufw deny 2764/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2764 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2764 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2764' -Direction Inbound -Protocol TCP -LocalPort 2764 -Action Block
ufw
sudo ufw deny 2764/udp
iptables
sudo iptables -A INPUT -p udp --dport 2764 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2764 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2764' -Direction Inbound -Protocol UDP -LocalPort 2764 -Action Block

Related ports

2762dicom-tls2763desktop-dna2765qip-audup2766compaq-scp

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