CyberHunter
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// Other services

Port 1580: tn-tl-r1

Port 1580 is assigned by IANA to tn-tl-r1 (tn-tl-r1), tn-tl-r2 (tn-tl-r2).

1580

How tn-tl-r1 works

Other services
client:1580tn-tl-r1response client:1580tn-tl-r1response

The client sends a request to port 1580 and the tn-tl-r1 service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned2 registered services
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 1580 dangerous?

We have no specific security note for port 1580. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 1580

ServicePortTransportDescriptionReferenceUpdated
tn-tl-r1 1580 TCP tn-tl-r1 - -
tn-tl-r2 1580 UDP tn-tl-r2 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1580, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1580'      # process listening on 1580
sudo lsof -nP -i :1580

macOS

sudo lsof -nP -i :1580

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1580 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1580
netstat -ano | findstr :1580

From another machine

nmap -p 1580 -sV <host>
sudo nmap -sU -p 1580 <host>
nc -zv <host> 1580

Block it in the firewall

sudo ufw deny 1580/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1580" -Direction Inbound -LocalPort 1580 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1580 used for?

Port 1580 is assigned by IANA to tn-tl-r1 (tn-tl-r1), tn-tl-r2 (tn-tl-r2).

Is port 1580 TCP or UDP?

Port 1580 is registered for TCP and UDP.

Is it safe to open port 1580?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 1580 is open?

On Linux run "ss -ltnup 'sport = :1580'", on macOS "lsof -nP -i :1580", and on Windows "netstat -ano | findstr :1580" to see the local process. From another machine, "nmap -p 1580 <host>" shows whether it is reachable.

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