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Port 6083 (miami-bcast)

IANA assigns port 6083 to miami-bcast: telecomsoftware miami broadcast.

Registered (user) port, 1024-49151 UDP

Port 6083 is normally used over UDP; the checker tests TCP only, so a "filtered" result does not mean the UDP service is down.

IANA assignment

Service nameProtoDescriptionAssigneeReference
miami-bcast UDP telecomsoftware miami broadcast Peter Steiner -

Registry dates for this port: registered 2011-02-22.

Check what is listening on port 6083

Linux: UDP 6083
sudo ss -ulnp 'sport = :6083'
Linux / macOS: which process owns the port
sudo lsof -nP -i :6083
Windows (Command Prompt)
netstat -ano | findstr :6083
Windows (PowerShell)
Get-NetUDPEndpoint -LocalPort 6083

Test it from outside

UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 6083

Block port 6083 in the firewall

ufw
sudo ufw deny 6083/udp
iptables
sudo iptables -A INPUT -p udp --dport 6083 -j DROP
nftables
sudo nft add rule inet filter input udp dport 6083 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 6083' -Direction Inbound -Protocol UDP -LocalPort 6083 -Action Block

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