- 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.
Port 39063: Children's hearing test/Telemedicine
Port 39063 is assigned by IANA to vroa (Children's hearing test/Telemedicine).
39063
How vroa works
Other servicesThe client sends a request to port 39063 and the vroa service answers.
- Transport
- TCP
- 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
Is port 39063 dangerous?
We have no specific security note for port 39063. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 39063
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| vroa | 39063 | TCP | Children's hearing test/Telemedicine | - | 2021-12-23 |
| - | 39063 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 39063, and is it reachable?
Linux
sudo ss -ltnup 'sport = :39063' # process listening on 39063
sudo lsof -nP -i :39063macOS
sudo lsof -nP -i :39063
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 39063 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 39063 netstat -ano | findstr :39063
From another machine
nmap -p 39063 -sV <host> nc -zv <host> 39063
Block it in the firewall
sudo ufw deny 39063/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 39063" -Direction Inbound -LocalPort 39063 -Protocol TCP -Action Block # Windows
What is port 39063 used for?
Port 39063 is assigned by IANA to vroa (Children's hearing test/Telemedicine).
Is port 39063 TCP or UDP?
Port 39063 is registered for TCP.
Is it safe to open port 39063?
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 39063 is open?
On Linux run "ss -ltnup 'sport = :39063'", on macOS "lsof -nP -i :39063", and on Windows "netstat -ano | findstr :39063" to see the local process. From another machine, "nmap -p 39063 <host>" shows whether it is reachable.
Other other services ports
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp