# WHATPORT(16012)

## NAME

port 16012 — Unassigned — Unregistered and unnamed — Nmap scans it on frequency data alone.

Protocol: TCP  
IANA registry

## DESCRIPTION

There is no IANA assignment for 16012 and no service name in Nmap's database; it earns its place in Nmap's default top-1000 TCP list only because scans find it open with measurable frequency. The neighbouring 16020 and 16021 are registered to FileMaker's Java Web Publishing Core, but nothing extends that block down to 16012. Treat an open 16012 as an unidentified application port.

## EXPOSURE

**Expose with care.** Nothing is known about what is behind it, which is exactly the problem: identify the listener before leaving it reachable from anywhere untrusted.

## CHECK

```sh
nmap -Pn -sV -p 16012 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)
- source — [Nmap services frequency database](https://github.com/nmap/nmap/blob/master/nmap-services) (github.com)

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HTML: <https://whatport.net/16012/> · JSON: <https://whatport.net/16012.json> · full dataset: <https://whatport.net/ports.json>