HTTPfy

Port 9208 (rjcdb-vcards)

IANA assigns port 9208 to rjcdb-vcards: rjcdb vCard.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
rjcdb-vcards TCP rjcdb vCard Robert John Churchil -
rjcdb-vcards UDP rjcdb vCard Robert John Churchil -

Registry dates for this port: registered 2006-01.

Check what is listening on port 9208

Linux: is anything listening on TCP 9208?
sudo ss -tlnp 'sport = :9208'
Linux: UDP 9208
sudo ss -ulnp 'sport = :9208'
Linux / macOS: which process owns the port
sudo lsof -nP -i :9208
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':9208 '
Windows (Command Prompt)
netstat -ano | findstr :9208
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 9208 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 9208
From Windows
Test-NetConnection HOST -Port 9208
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 9208

Block port 9208 in the firewall

ufw
sudo ufw deny 9208/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 9208 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 9208 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 9208' -Direction Inbound -Protocol TCP -LocalPort 9208 -Action Block
ufw
sudo ufw deny 9208/udp
iptables
sudo iptables -A INPUT -p udp --dport 9208 -j DROP
nftables
sudo nft add rule inet filter input udp dport 9208 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 9208' -Direction Inbound -Protocol UDP -LocalPort 9208 -Action Block

Related ports

9206wap-vcard-s9207wap-vcal-s9209almobile-system9210oma-mlp

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