Port 6464 (ieee11073-20701)

IANA assigns port 6464 to ieee11073-20701: Port assignment for medical device communication in accordance to IEEE 11073-20701.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

ieee11073-20701 TCP Port assignment for medical device communication in accordance to IEEE 11073-20701 David Gregorczyk -

ieee11073-20701 UDP Port assignment for medical device communication in accordance to IEEE 11073-20701 David Gregorczyk -

Registry dates for this port: registered 2017-03-02.

Linux: is anything listening on TCP 6464?

sudo ss -tlnp 'sport = :6464'

Linux: UDP 6464

sudo ss -ulnp 'sport = :6464'

Linux / macOS: which process owns the port

sudo lsof -nP -i :6464

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':6464 '

Windows (Command Prompt)

netstat -ano | findstr :6464

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6464 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 6464

From Windows

Test-NetConnection HOST -Port 6464

UDP probe (no reply does not prove it is closed)

nc -vzu -w 5 HOST 6464

ufw

sudo ufw deny 6464/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 6464 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 6464 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 6464' -Direction Inbound -Protocol TCP -LocalPort 6464 -Action Block

ufw

sudo ufw deny 6464/udp

iptables

sudo iptables -A INPUT -p udp --dport 6464 -j DROP

nftables

sudo nft add rule inet filter input udp dport 6464 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block UDP 6464' -Direction Inbound -Protocol UDP -LocalPort 6464 -Action Block

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