Port 2803btprjctrl

The IANA-assigned btprjctrl service uses TCP and UDP port 2803.

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

Technical Details

what runs on :2803

btprjctrl is registered on port :2803 over tcp and udp to Huw Thomas. 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 :2803

this machine

# linux
sudo ss -tulpn 'sport = :2803'

# macos / bsd
sudo lsof -nP -i :2803

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :2803

another host

nmap -sV -p T:2803 <host>
sudo nmap -sU -sV -p U:2803 <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 :2803

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 :2803 yet

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

Record

iana registry entry

port: :2803
service: btprjctrl
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: btprjctrl is the IANA service name assigned to TCP and UDP port 2803. The assignment is registered to Huw Thomas, but no public protocol or product details are recorded.
lookups: 0rank 993
added: 2026-09-03
updated: 2026-09-03
references: IANA service name registry — port 2803

Something wrong?

This record is maintained by the engineers who use port 2803. 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 2026-09-03.

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 :2803, by lookups.

port	service	proto	category	risk	views
:2809	IBM WebSphere WAS Bootstrap RMI	TCP	Web Services	caution	10.9k
:2809	CORBA IIOP URL	TCP	Network Services	caution	7.5k
:2863	Sonar Data	TCPUDP	—	safe	0
:2739	TN Timing	TCPUDP	—	safe	0
:2765	qip-audup	TCPUDP	—	safe	0
:2767	UADTC	TCPUDP	—	safe	0
:2771	Vergence CM	TCPUDP	—	safe	0
:2811	GridFTP	TCPUDP	Security	caution	0

risk mix of the 8 listed

safe63%
caution38%

0 of 8 encrypted

Port :2803btprjctrl

Technical Details

Security Information

Related Ports

Port 2803btprjctrl