Port 4912Technicolor LUT Access Protocol

TCP 4912 is assigned to Technicolor's LUT Access Protocol.

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

also known as lutap

Technical Details

what runs on :4912

Technicolor LUT Access Protocol is registered on port :4912 over tcp to Markus Loeffler, assigned February 2009. 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 :4912

this machine

# linux
sudo ss -tlpn 'sport = :4912'

# macos / bsd
sudo lsof -nP -i :4912

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :4912

another host

nmap -sV -p T:4912 <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 :4912

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

every listening transport is another surface to filter at the edge

security overview

no security notes recorded for :4912 yet

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

Record

iana registry entry

port: :4912
service: Technicolor LUT Access Protocol
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: The IANA assignment identifies TCP port 4912 for the Technicolor LUT Access Protocol. The registration is held by Markus Loeffler; public exposure is rarely observed.
lookups: 0rank 993
added: 2026-09-14
updated: 2026-09-14
references: IANA service name registry — port 4912

Something wrong?

This record is maintained by the engineers who use port 4912. 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 2026-09-14.

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 :4912, by lookups.

port	service	proto	category	risk	views
:4899	Radmin Remote Administration	TCPUDP	Security	safe	28.3k
:4949	Munin	TCP	Network Services	caution	8.9k
:4950	Cylon UC32 Control	TCPUDP	Network Services	caution	5.8k
:4894	LysKOM	TCPUDP	Voice and Chat	caution	4.1k
:4876	Tritium CAN Bus Bridge Service	TCPUDP	IoT	safe	0
:4877	Lighting Management Control System	TCPUDP	IoT	safe	0
:4881	SOCP Time Synchronization Protocol	UDP	Network Services	safe	0
:4868	Photon Relay	TCPUDPtls	Gaming	caution	0

risk mix of the 8 listed

safe50%
caution50%

1 of 8 encrypted

Port :4912Technicolor LUT Access Protocol

Technical Details

Security Information

Related Ports

Port 4912Technicolor LUT Access Protocol