Port 18463AC Cluster

TCP/UDP 18463 is assigned to AC Cluster, a service registered by Lisa Zhong; its protocol and deployment are not documented.

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

Technical Details

what runs on :18463

AC Cluster is registered on port :18463 over tcp and udp to Lisa Zhong. 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 :18463

this machine

# linux
sudo ss -tulpn 'sport = :18463'

# macos / bsd
sudo lsof -nP -i :18463

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :18463

another host

nmap -sV -p T:18463 <host>
sudo nmap -sU -sV -p U:18463 <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 :18463

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 :18463 yet

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

Record

iana registry entry

port: :18463
service: AC Cluster
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: IANA lists AC Cluster on TCP and UDP port 18463, registered to Lisa Zhong. No reliable details are available about what software uses it or where engineers might encounter it.
lookups: 0rank 993
added: 2026-10-18
updated: 2026-10-18
references: IANA service name registry — port 18463

Something wrong?

This record is maintained by the engineers who use port 18463. 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 2026-10-18.

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 :18463, by lookups.

port	service	proto	category	risk	views
:18505	Audition Dance Battle Status Check	TCPUDP	Network Services	caution	18.9k
:18400	Audition Dance Battle KAIZEN Server	TCPUDP	Gaming	caution	17.9k
:18506	Audition Online Dance Battle Nexon	TCPUDP	Gaming	caution	15.8k
:18401	Audition Online Brazil Server	TCPUDP	Gaming	caution	14.0k
:18516	HeyThings Device Communication Service	UDP	Mobile	safe	0

risk mix of the 5 listed

safe20%
caution80%

0 of 5 encrypted

Port :18463AC Cluster

Technical Details

Security Information

Related Ports

Port 18463AC Cluster