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Port 3052 (apc-3052)

IANA assigns port 3052 to apc-3052: APC 3052.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
apc-3052 TCP APC 3052 American Power Conve -
apc-3052 UDP APC 3052 American Power Conve -

Check what is listening on port 3052

Linux: is anything listening on TCP 3052?
sudo ss -tlnp 'sport = :3052'
Linux: UDP 3052
sudo ss -ulnp 'sport = :3052'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3052
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3052 '
Windows (Command Prompt)
netstat -ano | findstr :3052
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3052 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3052
From Windows
Test-NetConnection HOST -Port 3052
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3052

Block port 3052 in the firewall

ufw
sudo ufw deny 3052/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3052 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3052 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3052' -Direction Inbound -Protocol TCP -LocalPort 3052 -Action Block
ufw
sudo ufw deny 3052/udp
iptables
sudo iptables -A INPUT -p udp --dport 3052 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3052 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3052' -Direction Inbound -Protocol UDP -LocalPort 3052 -Action Block

Related ports

3050gds-db, gds_db3051galaxy-server3053dsom-server3054amt-cnf-prot

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