# WHATPORT(687)

## NAME

port 687 — asipregistry — An Apple registration from the AppleShare IP era; you will almost never see it live.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA lists 687 as "asipregistry", registered by Erik Sea of Apple during the AppleShare IP period. It was a registry/lookup companion to AppleShare services, not the file protocol itself — AFP has always run on 548. No public protocol specification was ever published and modern macOS does not open it. On a scan it is effectively noise: either a very old Mac server or an unrelated service squatting on the number.

## EXPOSURE

**Expose with care.** Undocumented and unauthenticated by any published spec; if something is listening here, identify what it actually is before leaving it reachable.

## CHECK

```sh
nc -vz TARGET 687
```

## 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/687/> · JSON: <https://whatport.net/687.json> · full dataset: <https://whatport.net/ports.json>