Port 147

iso-ip · TCP/UDP

RangeSystem/well-known port (0–1023)
ProtocolTCP/UDP
Serviceiso-ip

Frequently asked questions

What is port 147 used for?

Port 147 is registered with the IANA for iso-ip (TCP/UDP). Description: ISO-IP.

Is port 147 a well-known port?

Yes. Port 147 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.

How do I check whether port 147 is open?

Locally on Linux with ss -tulpn | grep ':147\b', on Windows with netstat -ano | findstr :147. To test a remote host use Test-NetConnection <host> -Port 147 in PowerShell or nc -zv <host> 147 on Linux/macOS.

How do I open port 147 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 147/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=147/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 147" -Direction Inbound -Protocol TCP -LocalPort 147 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPiso-ipISO-IP
UDPiso-ipISO-IP

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