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Port 9207 (wap-vcal-s)

IANA assigns port 9207 to wap-vcal-s: WAP vCal Secure.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
wap-vcal-s TCP WAP vCal Secure WAP Forum -
wap-vcal-s UDP WAP vCal Secure WAP Forum -

Check what is listening on port 9207

Linux: is anything listening on TCP 9207?
sudo ss -tlnp 'sport = :9207'
Linux: UDP 9207
sudo ss -ulnp 'sport = :9207'
Linux / macOS: which process owns the port
sudo lsof -nP -i :9207
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':9207 '
Windows (Command Prompt)
netstat -ano | findstr :9207
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 9207 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 9207
From Windows
Test-NetConnection HOST -Port 9207
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 9207

Block port 9207 in the firewall

ufw
sudo ufw deny 9207/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 9207 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 9207 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 9207' -Direction Inbound -Protocol TCP -LocalPort 9207 -Action Block
ufw
sudo ufw deny 9207/udp
iptables
sudo iptables -A INPUT -p udp --dport 9207 -j DROP
nftables
sudo nft add rule inet filter input udp dport 9207 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 9207' -Direction Inbound -Protocol UDP -LocalPort 9207 -Action Block

Related ports

9205wap-vcal9206wap-vcard-s9208rjcdb-vcards9209almobile-system

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