Port 1455ESL License Manager

ESL License Manager traffic for software licensing over TCP or UDP port 1455.

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

also known as esl-lm

Technical Details

what runs on :1455

no technical write-up for :1455 yet

the handshake, the implementations you meet in the wild, the flags that matter. we have the registry entry — the detail comes from the engineers who run it.

add technical details

Security Information

exposure of :1455

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 :1455 yet

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

Record

iana registry entry

port: :1455
service: ESL License Manager
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: The IANA assignment identifies TCP and UDP port 1455 as ESL License Manager, registered to Abel Chou. Public deployment details are not established here; internet-wide scans find it open only occasionally.
lookups: 0rank 994
added: 2026-08-21
updated: 2026-08-21
references: IANA service name registry — port 1455

Something wrong?

This record is maintained by the engineers who use port 1455. 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 2026-08-21.

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 :1455, by lookups.

port	service	proto	category	risk	views
:1513	Garena Gaming	TCPUDP	Gaming	caution	33.1k
:1431	Reverse Gossip Transport Protocol (RGTP)	TCP	Web Services	caution	27.3k
:1433	Microsoft SQL Server	TCP	Databases	caution	14.8k
:1434	MSSQL Monitor	TCPUDP	Security	caution	14.7k
:1500	NetGuard GuardianPro Remote Management	TCP	Security	caution	12.7k
:1503	Live Messenger Whiteboard Sharing	TCPUDP	Network Services	caution	12.4k
:1501	NetGuard GuardianPro Auth Client	UDP	Security	caution	12.0k
:1512	WINS	TCPUDP	Network Services	caution	10.1k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :1455ESL License Manager

Technical Details

Security Information

Related Ports

Port 1455ESL License Manager