Port 5502fcp-srvr-inst1

Port 5502 is assigned to the fcp-srvr-inst1 service.

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

Technical Details

what runs on :5502

fcp-srvr-inst1 is registered on port :5502 over tcp and udp to Ken Wittmer. 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 :5502

this machine

# linux
sudo ss -tulpn 'sport = :5502'

# macos / bsd
sudo lsof -nP -i :5502

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :5502

another host

nmap -sV -p T:5502 <host>
sudo nmap -sU -sV -p U:5502 <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 :5502

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 :5502 yet

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

Record

iana registry entry

port: :5502
service: fcp-srvr-inst1
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: The registry assigns TCP and UDP port 5502 to fcp-srvr-inst1. The assignment is registered to Ken Wittmer, but no public protocol or product details are recorded.
lookups: 0rank 993
added: 2026-09-14
updated: 2026-09-14
references: IANA service name registry — port 5502

Something wrong?

This record is maintained by the engineers who use port 5502. 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 :5502, by lookups.

port	service	proto	category	risk	views
:5555	Freeciv	TCP	Security	caution	26.9k
:5495	Applix TM1 Admin	TCP	Databases	caution	24.8k
:5500	VNC Viewer Listener	TCP	Remote Access	caution	15.1k
:5450	OSIsoft PI System Client	TCP	Databases	caution	14.3k
:5498	Hotline Tracker Server	TCP	File Transfer	caution	8.4k
:5550	HP Data Protector	TCP	File Transfer	caution	8.2k
:5517	Setiqueue Proxy	TCPtls	Cloud	caution	8.0k
:5501	Hotline File Transfer	TCP	File Transfer	caution	7.8k

risk mix of the 8 listed

caution100%

1 of 8 encrypted

Port :5502fcp-srvr-inst1

Technical Details

Security Information

Related Ports

Port 5502fcp-srvr-inst1