Port 3738VersaTalk

IANA assigns TCP and UDP 3738 to the VersaTalk server; no widely documented deployment is known.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 1/10
lookups: 0

Technical Details

what runs on :3738

VersaTalk is registered on port :3738 over tcp and udp to Dr Kingsley C Nwos, assigned April 2003. We don't have a technical write-up for it beyond the IANA registry entry.

In nmap's internet-wide scan data this port is never observed open, so if it's open on your network it's more likely a custom or misconfigured service than the registered one.

find what's listening on :3738

this machine

# linux
sudo ss -tulpn 'sport = :3738'

# macos / bsd
sudo lsof -nP -i :3738

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :3738

another host

nmap -sV -p T:3738 <host>
sudo nmap -sU -sV -p U:3738 <host>

run it? the handshake, the implementations you meet in the wild and the flags that matter come from the engineers who do.

add technical details

Security Information

exposure of :3738

risk score

1/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

no security notes recorded for :3738 yet

known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.

Record

iana registry entry

port: :3738
service: VersaTalk
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: The registry describes TCP/UDP 3738 as the “versaTalk Server Port,” assigned to Dr Kingsley C Nwos in 2003. It is not widely documented and has not appeared open in nmap’s internet scan data, so a listener is more likely to be a private or uncommon installation than a standard network service.
lookups: 0rank 993
added: 2026-10-01
updated: 2026-10-01
references: IANA service name registry — port 3738

Something wrong?

This record is maintained by the engineers who use port 3738. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-10-01.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

Related Ports

browse categories →

ports registered around :3738, by lookups.

port	service	proto	category	risk	views
:3702	WS-Discovery	TCPUDP	Network Services	caution	16.5k
:3724	Club Penguin	TCP	Gaming	caution	10.4k
:3724	World of Warcraft	TCPUDP	Network Services	caution	10.2k
:3723	Battle.net Gaming	TCPUDP	Network Services	caution	9.2k
:3689	DAAP (iTunes Music Sharing)	TCP	Streaming	caution	9.2k
:3690	Subversion (SVN)	TCPUDP	File Transfer	caution	5.4k
:3784	Ventrilo	TCPUDP	Gaming	caution	4.9k
:3800	HGG Application Port	TCP	Network Services	caution	4.8k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :3738VersaTalk

Technical Details

Security Information

Related Ports

Port 3738VersaTalk