Port 7550Cloud Signaling Service
UDP port 7550 is assigned to the Cloud Signaling Service; its protocol and public deployment are undocumented.
- transport
- udp
- in transit
- cleartext
- assignment
- official
- risk
- 1/10
- lookups
- 0
single transport
payload readable on path
registered with iana
safe
rank 993 of 5,899 · top 17%
Technical Details
what runs on :7550Cloud Signaling Service is registered on port :7550 over udp to Scott Dawson, assigned July 2011. 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 never observed open, so if it's open on your network it's more likely a custom or misconfigured service than the registered one.
find what's listening on :7550
# linux
sudo ss -ulpn 'sport = :7550'
# macos / bsd
sudo lsof -nP -i :7550
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :7550sudo nmap -sU -sV -p U:7550 <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 detailsSecurity Information
exposure of :7550risk 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
udp
udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite
security overview
no security notes recorded for :7550 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
ports registered around :7550, by lookups.
| port | service | risk | |||
|---|---|---|---|---|---|
| :7547 | TR-069 CPE WAN Management | TCPUDP | Remote Access | caution | 8.3k |
| :7501 | HP OpenView Bus Daemon | TCPUDP | Network Services | safe | 0 |
| :7510 | HP OpenView Application Server | TCPUDP | — | safe | 0 |
| :7491 | telops-lmd | TCPUDP | — | safe | 0 |
| :7508 | Automation Device Configuration Protocol | TCP | Network Services | safe | 0 |
| :7509 | ACPLT process automation service | TCP | Network Services | safe | 0 |
| :7549 | Network Layer Signaling Transport Layer | TCPUDP | Network Services | safe | 0 |
| :7500 | Silhouette User | TCPUDP | — | safe | 0 |
risk mix of the 8 listed
- safe88%
- caution13%
0 of 8 encrypted