# WHATPORT(25734)

## NAME

port 25734 — Unassigned — Unassigned, unnamed, and usually seen next to 25735 — a pair with no documented owner.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA has 25734 inside the unassigned range 25605-25792. Nmap lists it as 'unknown' with a small open-frequency, and the adjacent 25735 carries a separate 'unknown' entry, so the two are commonly reported together. No public documentation names a product that binds either. The pairing is suggestive of a single application using consecutive ports, but nothing verifiable identifies it.

## EXPOSURE

**Expose with care.** Unknown listener. Fingerprint it, and if it turns out to be part of an application's control pair, apply that application's rules.

## CHECK

```sh
nmap -Pn -sV -p 25734,25735 --reason 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 nmap-services frequency table](https://github.com/nmap/nmap/blob/master/nmap-services) (github.com)

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HTML: <https://whatport.net/25734/> · JSON: <https://whatport.net/25734.json> · full dataset: <https://whatport.net/ports.json>