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// Other services

Port 3366: Creative Partner

Port 3366 is assigned by IANA to creativepartnr (Creative Partner).

3366

How creativepartnr works

Other services
client:3366creativepartnrresponse client:3366creativepartnrresponse

The client sends a request to port 3366 and the creativepartnr 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 3366 dangerous?

We have no specific security note for port 3366. 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 3366

ServicePortTransportDescriptionReferenceUpdated
creativepartnr 3366 TCP, UDP Creative Partner - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3366, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3366'      # process listening on 3366
sudo lsof -nP -i :3366

macOS

sudo lsof -nP -i :3366

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3366 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3366
netstat -ano | findstr :3366

From another machine

nmap -p 3366 -sV <host>
sudo nmap -sU -p 3366 <host>
nc -zv <host> 3366

Block it in the firewall

sudo ufw deny 3366/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3366" -Direction Inbound -LocalPort 3366 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3366 used for?

Port 3366 is assigned by IANA to creativepartnr (Creative Partner).

Is port 3366 TCP or UDP?

Port 3366 is registered for TCP and UDP.

Is it safe to open port 3366?

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 3366 is open?

On Linux run "ss -ltnup 'sport = :3366'", on macOS "lsof -nP -i :3366", and on Windows "netstat -ano | findstr :3366" to see the local process. From another machine, "nmap -p 3366 <host>" shows whether it is reachable.

05 Related
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