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Port 1153 (c1222-acse)

IANA assigns port 1153 to c1222-acse: ANSI C12.22 Port.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
c1222-acse TCP ANSI C12.22 Port - RFC 6142
c1222-acse UDP ANSI C12.22 Port - RFC 6142

Check what is listening on port 1153

Linux: is anything listening on TCP 1153?
sudo ss -tlnp 'sport = :1153'
Linux: UDP 1153
sudo ss -ulnp 'sport = :1153'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1153
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1153 '
Windows (Command Prompt)
netstat -ano | findstr :1153
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1153 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1153
From Windows
Test-NetConnection HOST -Port 1153
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1153

Block port 1153 in the firewall

ufw
sudo ufw deny 1153/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1153 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1153 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1153' -Direction Inbound -Protocol TCP -LocalPort 1153 -Action Block
ufw
sudo ufw deny 1153/udp
iptables
sudo iptables -A INPUT -p udp --dport 1153 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1153 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1153' -Direction Inbound -Protocol UDP -LocalPort 1153 -Action Block

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