Port 9998Distinct32

Distinct32 uses TCP and UDP port 9998; public protocol details are not documented.

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

Technical Details

what runs on :9998

Distinct32 is registered on port :9998 over tcp and udp to Anoop Tewari. 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 found open rarely. What's listening is often not the registered service, so check before you assume.

find what's listening on :9998

this machine

# linux
sudo ss -tulpn 'sport = :9998'

# macos / bsd
sudo lsof -nP -i :9998

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :9998

another host

nmap -sV -p T:9998 <host>
sudo nmap -sU -sV -p U:9998 <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 :9998

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 :9998 yet

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

Record

iana registry entry

port: :9998
service: Distinct32
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: IANA assigns the name Distinct32 to TCP and UDP port 9998. The assignment is registered to Anoop Tewari, with no additional registry notes or documented deployment details.
lookups: 0rank 993
added: 2026-09-07
updated: 2026-09-07
references: IANA service name registry — port 9998

Something wrong?

This record is maintained by the engineers who use port 9998. 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 2026-09-07.

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 :9998, by lookups.

port	service	proto	category	risk	views
:10000	Webmin		Web Services	caution	23.3k
:10000	Ericsson Account Manager		Network Services	caution	15.9k
:9999	Lantronix RS-485 Telnet Control	TCP	Network Services	caution	15.8k
:9999	Hydranode TELNET Control		File Transfer	caution	15.6k
:10000	BackupExec		File Transfer	caution	15.3k
:9999	Urchin Analytics		Web Services	caution	13.8k
:9987	TeamSpeak 3 Voice	UDP	Gaming	caution	11.9k
:10051	Zabbix Trapper	TCPUDP	Network Services	caution	9.6k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :9998Distinct32

Technical Details

Security Information

Related Ports

Port 9998Distinct32