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Port 1662 (netview-aix-2)

IANA assigns port 1662 to netview-aix-2.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
netview-aix-2 TCP netview-aix-2 - -
netview-aix-2 UDP netview-aix-2 - -

Check what is listening on port 1662

Linux: is anything listening on TCP 1662?
sudo ss -tlnp 'sport = :1662'
Linux: UDP 1662
sudo ss -ulnp 'sport = :1662'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1662
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1662 '
Windows (Command Prompt)
netstat -ano | findstr :1662
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1662 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1662
From Windows
Test-NetConnection HOST -Port 1662
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1662

Block port 1662 in the firewall

ufw
sudo ufw deny 1662/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1662 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1662 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1662' -Direction Inbound -Protocol TCP -LocalPort 1662 -Action Block
ufw
sudo ufw deny 1662/udp
iptables
sudo iptables -A INPUT -p udp --dport 1662 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1662 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1662' -Direction Inbound -Protocol UDP -LocalPort 1662 -Action Block

Related ports

1660skip-mc-gikreq1661netview-aix-11663netview-aix-31664netview-aix-4

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