Port 5133Policy Commander

Port 5133 is assigned to Policy Commander over TCP and UDP.

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

also known as nbt-pc

Technical Details

what runs on :5133

Policy Commander is registered on port :5133 over tcp and udp to Emily Harris, assigned November 2004. 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 :5133

this machine

# linux
sudo ss -tulpn 'sport = :5133'

# macos / bsd
sudo lsof -nP -i :5133

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :5133

another host

nmap -sV -p T:5133 <host>
sudo nmap -sU -sV -p U:5133 <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 :5133

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 :5133 yet

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

Record

iana registry entry

port: :5133
service: Policy Commander
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: IANA assigns TCP and UDP port 5133 to Policy Commander. The assignment was registered by Emily Harris in 2004; publicly documented deployment details are unavailable.
lookups: 0rank 993
added: 2026-09-14
updated: 2026-09-14
references: IANA service name registry — port 5133

Something wrong?

This record is maintained by the engineers who use port 5133. 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 :5133, by lookups.

port	service	proto	category	risk	views
:5104	IBM Netcool Impact HTTP	TCP	Network Services	caution	22.2k
:5070	BFCP	TCP	Network Services	caution	15.2k
:5093	SafeNet License Manager	UDP	System	caution	13.3k
:5107	A-Talk Remote Server	TCP	Remote Access	caution	12.2k
:5106	A-Talk	TCP	Voice and Chat	caution	11.1k
:5099	SafeNet Sentinel License Manager	TCPUDP	System	caution	10.8k
:5109	VPOP3 Status	TCPUDP	Email	caution	10.6k
:5085	LLRP over TLS	TCPUDP	Network Services	caution	9.2k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :5133Policy Commander

Technical Details

Security Information

Related Ports

Port 5133Policy Commander