HTTPfy

Port 4316 (choiceview-clt)

IANA assigns port 4316 to choiceview-clt: ChoiceView Client.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
choiceview-clt TCP ChoiceView Client Radish Systems -

Registry dates for this port: registered 2013-03-28.

Check what is listening on port 4316

Linux: is anything listening on TCP 4316?
sudo ss -tlnp 'sport = :4316'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4316
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4316 '
Windows (Command Prompt)
netstat -ano | findstr :4316
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4316 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4316
From Windows
Test-NetConnection HOST -Port 4316

Block port 4316 in the firewall

ufw
sudo ufw deny 4316/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4316 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4316 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4316' -Direction Inbound -Protocol TCP -LocalPort 4316 -Action Block

Related ports

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