# WHATPORT(8031)

## NAME

port 8031 — Unassigned — Unassigned by IANA, yet turns up in scan data more often than its registered neighbours.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA lists 8028-8031 as Unassigned and Nmap has no service name for 8031, but Nmap's frequency data still ranks it above many named ports nearby — roughly a quarter of a percent of scanned hosts. That combination usually means a widely deployed product picked the number without registering it, rather than one standard protocol. Nothing well-documented pins it down, so treat the number as a hint and fingerprint the service.

## EXPOSURE

**Expose with care.** No registration means no protocol-level verdict. Identify what answers before you decide whether it belongs on a public address.

## CHECK

```sh
nmap -sV -Pn -p 8031 TARGET
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry — 8031](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=8031) (iana.org)
- source — [nmap/nmap — nmap-services (port frequency database)](https://github.com/nmap/nmap/blob/master/nmap-services) (github.com)

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HTML: <https://whatport.net/8031/> · JSON: <https://whatport.net/8031.json> · full dataset: <https://whatport.net/ports.json>