# WHATPORT(801)

## NAME

port 801 — device — Registered under the bare name "device" with no description and no known implementation.

Protocol: TCP  
IANA registry

## DESCRIPTION

The IANA registry entry for 801 is the service name "device" with an empty description and no recorded contact or reference. No specification was ever published, and there is no software known to implement it. Nmap lists the same name purely because it mirrors the registry. Anything answering on 801 is a locally chosen listener that has nothing to do with the registration.

## EXPOSURE

**Expose with care.** The name tells you nothing; fingerprint the listener and judge its exposure on what it actually is.

## CHECK

```sh
nmap -sV -p 801 TARGET
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml) (iana.org)

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HTML: <https://whatport.net/801/> · JSON: <https://whatport.net/801.json> · full dataset: <https://whatport.net/ports.json>