# WHATPORT(5566)

## NAME

port 5566 — Westec Connect (westec-connect) — Registered in 2009 to a commercial video-surveillance service and rarely seen anywhere else.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA registered 5566/tcp in 2009 as westec-connect, for Westec Intelligent Surveillance's managed video product; UDP 5566 is reserved rather than assigned. No protocol description was published, and no common software defaults to this port. Open on a host that is not part of a Westec installation, it is simply an application someone assigned there.

## EXPOSURE

**Expose with care.** If it really is surveillance connectivity, video and camera control are sensitive traffic — confirm what is listening before letting it out.

## CHECK

```sh
nc -vz -w 3 TARGET 5566
```

## SEE ALSO

- iana — [IANA port registry — 5566 (westec-connect)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=5566) (iana.org)

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HTML: <https://whatport.net/5566/> · JSON: <https://whatport.net/5566.json> · full dataset: <https://whatport.net/ports.json>