Port 16000Administration Server Access

TCP service for Administration Server Access, assigned under the fmsas service name.

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

also known as fmsas

1 other service is registered on port 16000. compare all 2 →

Technical Details

what runs on :16000

Administration Server Access is registered on port :16000 over tcp to Mark Davidson, assigned October 2010. 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.

IANA has recorded this port being used for something it was not assigned for.

find what's listening on :16000

this machine

# linux
sudo ss -tlpn 'sport = :16000'

# macos / bsd
sudo lsof -nP -i :16000

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :16000

another host

nmap -sV -p T:16000 <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 :16000

risk score

1/ 10safe

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

remote access averages 3.7 across 194 ports — this one sits 2.7 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

every listening transport is another surface to filter at the edge

security overview

no security notes recorded for :16000 yet

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

Record

iana registry entry

port: :16000
service: Administration Server Access
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: Remote Access
usage: The fmsas assignment identifies TCP port 16000 for Administration Server Access. IANA lists Mark Davidson as the registrant; no product, protocol, or implementation details are provided.
lookups: 0rank 993
added: 2026-09-09
updated: 2026-09-09
references: IANA service name registry — port 16000

Something wrong?

This record is maintained by the engineers who use port 16000. 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 2026-09-09.

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 194 in remote access →

the 8 most looked-up other ports in remote access — 194 ports carry that label.

port	service	proto	category	risk	views
:8000	Intel Remote Desktop / Alternate HTTP Port	TCP	Web Services	safe	84.3k
:8888	D2GS Admin Console	TCP	Remote Access	caution	83.7k
:8881	Atlasz Secure Server	TCP	Web Services	caution	67.6k
:5938	TeamViewer	TCPUDP	Remote Access	caution	65.0k
:8291	Winbox MikroTik Admin	TCP	Security	caution	62.9k
:8008	IBM HTTP Server Admin	TCP	Web Services	caution	58.3k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:23	Telnet	TCP	Remote Access	caution	34.8k

risk mix of the 8 listed

safe13%
caution88%

0 of 8 encrypted

Port :16000Administration Server Access

Technical Details

Security Information

Related Ports

Port 16000Administration Server Access