Port 6390MetaEdit+ WebService API

Port 6390 is assigned to the MetaEdit+ WebService API over TCP and UDP.

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

also known as metaedit-ws

Technical Details

what runs on :6390

MetaEdit+ WebService API is registered on port :6390 over tcp and udp to Steven Kelly, assigned November 2007. 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 :6390

this machine

# linux
sudo ss -tulpn 'sport = :6390'

# macos / bsd
sudo lsof -nP -i :6390

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :6390

another host

nmap -sV -p T:6390 <host>
sudo nmap -sU -sV -p U:6390 <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 :6390

risk score

1/ 10safe

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

web services averages 3.1 across 206 ports — this one sits 2.1 below.

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 :6390 yet

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

Record

iana registry entry

port: :6390
service: MetaEdit+ WebService API
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: Web Services
usage: IANA assigns TCP and UDP port 6390 to the MetaEdit+ WebService API, registered to Steven Kelly. There is not enough established information to describe its protocol behavior or typical deployments.
lookups: 0rank 993
added: 2026-10-10
updated: 2026-10-10
references: IANA service name registry — port 6390

Something wrong?

This record is maintained by the engineers who use port 6390. 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 2026-10-10.

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

all 206 in web services →

the 8 most looked-up other ports in web services — 206 ports carry that label.

port	service	proto	category	risk	views
:8888	Sun Answerbook & Alt HTTP	TCP	Web Services	caution	123.9k
:8000	Intel Remote Desktop / Alternate HTTP Port	TCP	Web Services	safe	84.3k
:8888	NewsEDGE	TCPUDP	Web Services	caution	83.3k
:8888	HTTP Alternative Port	TCP	Web Services	caution	76.5k
:8888	GNUmp3d Streaming HTTP	TCP	Web Services	caution	76.3k
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:8881	Atlasz Secure Server	TCP	Web Services	caution	67.6k
:80	HTTP	TCPUDP	Web Services	caution	67.3k

risk mix of the 8 listed

safe13%
caution88%

0 of 8 encrypted

Port :6390MetaEdit+ WebService API

Technical Details

Security Information

Related Ports

Port 6390MetaEdit+ WebService API