Port 379
is99c · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | is99c |
Frequently asked questions
What is port 379 used for?
Port 379 is registered with the IANA for is99c (TCP/UDP). Description: TIA/EIA/IS-99 modem client.
Is port 379 a well-known port?
Yes. Port 379 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 379 is open?
Locally on Linux with ss -tulpn | grep ':379\b', on Windows with netstat -ano | findstr :379. To test a remote host use Test-NetConnection <host> -Port 379 in PowerShell or nc -zv <host> 379 on Linux/macOS.
How do I open port 379 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 379/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=379/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 379" -Direction Inbound -Protocol TCP -LocalPort 379 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | is99c | TIA/EIA/IS-99 modem client |
| UDP | is99c | TIA/EIA/IS-99 modem client |