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Port 5429 (base)

IANA assigns port 5429 to base: Billing and Accounting System Exchange.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
base TCP Billing and Accounting System Exchange Odo Maletzki -
base UDP Billing and Accounting System Exchange Odo Maletzki -

Check what is listening on port 5429

Linux: is anything listening on TCP 5429?
sudo ss -tlnp 'sport = :5429'
Linux: UDP 5429
sudo ss -ulnp 'sport = :5429'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5429
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5429 '
Windows (Command Prompt)
netstat -ano | findstr :5429
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5429 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5429
From Windows
Test-NetConnection HOST -Port 5429
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5429

Block port 5429 in the firewall

ufw
sudo ufw deny 5429/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5429 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5429 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5429' -Direction Inbound -Protocol TCP -LocalPort 5429 -Action Block
ufw
sudo ufw deny 5429/udp
iptables
sudo iptables -A INPUT -p udp --dport 5429 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5429 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5429' -Direction Inbound -Protocol UDP -LocalPort 5429 -Action Block

Related ports

5427sco-peer-tta5428telaconsole5430radec-corp5431park-agent

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