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Port 5910 (ats-atn, cm)

IANA assigns port 5910 to ats-atn, cm: Air Traffic Services applications using ATN.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ats-atn TCP Air Traffic Services applications using ATN Eivan Cerasi -
ats-atn UDP Air Traffic Services applications using ATN Eivan Cerasi -
cm SCTP Context Management Justin Yu -

Registry dates for this port: registered 2008-10-10, last modified 2022-08-08.

Check what is listening on port 5910

Linux: is anything listening on TCP 5910?
sudo ss -tlnp 'sport = :5910'
Linux: UDP 5910
sudo ss -ulnp 'sport = :5910'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5910
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5910 '
Windows (Command Prompt)
netstat -ano | findstr :5910
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5910 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5910
From Windows
Test-NetConnection HOST -Port 5910
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5910

Block port 5910 in the firewall

ufw
sudo ufw deny 5910/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5910 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5910 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5910' -Direction Inbound -Protocol TCP -LocalPort 5910 -Action Block
ufw
sudo ufw deny 5910/udp
iptables
sudo iptables -A INPUT -p udp --dport 5910 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5910 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5910' -Direction Inbound -Protocol UDP -LocalPort 5910 -Action Block

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