# WHATPORT(8877)

## NAME

port 8877 — Unassigned — No IANA assignment at all — 8877 sits inside the unassigned 8874–8879 block.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA lists the 8874–8879 range as Unassigned, so nothing has a claim on 8877 and no standard protocol answers there. Ports in the 88xx band get picked freely by individual products for alternate HTTP, admin, and diagnostic endpoints, which means the only reliable identification is local: find the process that owns the socket. Do not infer a service from the number.

## EXPOSURE

**Expose with care.** An unassigned port is not a safe port; whatever chose it is often an admin or diagnostics endpoint that assumed nobody would reach it.

## CHECK

```sh
sudo lsof -nP -iTCP:8877 -sTCP:LISTEN
```

## SEE ALSO

- iana — [IANA Service Name and Transport Protocol Port Number Registry — 8877](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=8877) (iana.org)

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HTML: <https://whatport.net/8877/> · JSON: <https://whatport.net/8877.json> · full dataset: <https://whatport.net/ports.json>