HTTPfy

Port 485 (powerburst)

IANA assigns port 485 to powerburst: Air Soft Power Burst.

Well-known (system) port, 0-1023 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
powerburst TCP Air Soft Power Burst gary -
powerburst UDP Air Soft Power Burst gary -

Check what is listening on port 485

Linux: is anything listening on TCP 485?
sudo ss -tlnp 'sport = :485'
Linux: UDP 485
sudo ss -ulnp 'sport = :485'
Linux / macOS: which process owns the port
sudo lsof -nP -i :485
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':485 '
Windows (Command Prompt)
netstat -ano | findstr :485
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 485 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 485
From Windows
Test-NetConnection HOST -Port 485
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 485

Block port 485 in the firewall

ufw
sudo ufw deny 485/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 485 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 485 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 485' -Direction Inbound -Protocol TCP -LocalPort 485 -Action Block
ufw
sudo ufw deny 485/udp
iptables
sudo iptables -A INPUT -p udp --dport 485 -j DROP
nftables
sudo nft add rule inet filter input udp dport 485 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 485' -Direction Inbound -Protocol UDP -LocalPort 485 -Action Block

Related ports

483ulpnet484integra-sme486avian487saft

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