CyberHunter
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// Other services

Port 1481: AIRS

Port 1481 is assigned by IANA to airs (AIRS).

1481

How airs works

Other services
client:1481airsresponse client:1481airsresponse

The client sends a request to port 1481 and the airs service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 1481 dangerous?

We have no specific security note for port 1481. 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 1481

ServicePortTransportDescriptionReferenceUpdated
airs 1481 TCP, UDP AIRS - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1481, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1481'      # process listening on 1481
sudo lsof -nP -i :1481

macOS

sudo lsof -nP -i :1481

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1481 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1481
netstat -ano | findstr :1481

From another machine

nmap -p 1481 -sV <host>
sudo nmap -sU -p 1481 <host>
nc -zv <host> 1481

Block it in the firewall

sudo ufw deny 1481/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1481" -Direction Inbound -LocalPort 1481 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1481 used for?

Port 1481 is assigned by IANA to airs (AIRS).

Is port 1481 TCP or UDP?

Port 1481 is registered for TCP and UDP.

Is it safe to open port 1481?

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 1481 is open?

On Linux run "ss -ltnup 'sport = :1481'", on macOS "lsof -nP -i :1481", and on Windows "netstat -ano | findstr :1481" to see the local process. From another machine, "nmap -p 1481 <host>" shows whether it is reachable.

05 Related
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