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Port 3440 (ans-console)

IANA assigns port 3440 to ans-console: Net Steward Mgmt Console.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ans-console TCP Net Steward Mgmt Console John Richmond -
ans-console UDP Net Steward Mgmt Console John Richmond -

Registry dates for this port: registered 2002-03.

Check what is listening on port 3440

Linux: is anything listening on TCP 3440?
sudo ss -tlnp 'sport = :3440'
Linux: UDP 3440
sudo ss -ulnp 'sport = :3440'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3440
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3440 '
Windows (Command Prompt)
netstat -ano | findstr :3440
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3440 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3440
From Windows
Test-NetConnection HOST -Port 3440
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3440

Block port 3440 in the firewall

ufw
sudo ufw deny 3440/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3440 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3440 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3440' -Direction Inbound -Protocol TCP -LocalPort 3440 -Action Block
ufw
sudo ufw deny 3440/udp
iptables
sudo iptables -A INPUT -p udp --dport 3440 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3440 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3440' -Direction Inbound -Protocol UDP -LocalPort 3440 -Action Block

Related ports

3438spiral-admin3439hri-port3441connect-client3442connect-server

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