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Local dataset, no network
// Other services

Port 9694: T-Mobile Client Wakeup Message

Port 9694 is assigned by IANA to client-wakeup (T-Mobile Client Wakeup Message).

9694

How client-wakeup works

Other services
client:9694client-wakeupresponse client:9694client-wakeupresponse

The client sends a request to port 9694 and the client-wakeup 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 9694 dangerous?

We have no specific security note for port 9694. 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 9694

ServicePortTransportDescriptionReferenceUpdated
client-wakeup 9694 TCP, UDP T-Mobile Client Wakeup Message - 2009-09-11

// source: IANA service name and port number registry

03 Check it

Which program uses port 9694, and is it reachable?

Linux

sudo ss -ltnup 'sport = :9694'      # process listening on 9694
sudo lsof -nP -i :9694

macOS

sudo lsof -nP -i :9694

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9694 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 9694
netstat -ano | findstr :9694

From another machine

nmap -p 9694 -sV <host>
sudo nmap -sU -p 9694 <host>
nc -zv <host> 9694

Block it in the firewall

sudo ufw deny 9694/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 9694" -Direction Inbound -LocalPort 9694 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 9694 used for?

Port 9694 is assigned by IANA to client-wakeup (T-Mobile Client Wakeup Message).

Is port 9694 TCP or UDP?

Port 9694 is registered for TCP and UDP.

Is it safe to open port 9694?

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 9694 is open?

On Linux run "ss -ltnup 'sport = :9694'", on macOS "lsof -nP -i :9694", and on Windows "netstat -ano | findstr :9694" to see the local process. From another machine, "nmap -p 9694 <host>" shows whether it is reachable.

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