# WHATPORT(1073)

## NAME

port 1073 — Bridge Control — A 1990s IANA registration called "Bridge Control" with no public specification.

Protocol: TCP  
IANA registry

## DESCRIPTION

IANA lists 1073/tcp and 1073/udp as bridgecontrol, "Bridge Control", registered to Andy Heron. No protocol document, product page, or open implementation is publicly available, so there is nothing to fingerprint against. A listener you find here is far more likely to be an unrelated application that grabbed a low free port, or a Windows client socket from the old 1025-5000 dynamic range, than the registered protocol.

## EXPOSURE

**Expose with care.** Identify what is actually listening before deciding — the registration tells you nothing about the service's authentication or encryption.

## CHECK

```sh
nmap -sV -Pn -p 1073 TARGET
```

## SEE ALSO

- iana — [IANA port registry — 1073 (bridgecontrol)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=1073) (iana.org)

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HTML: <https://whatport.net/1073/> · JSON: <https://whatport.net/1073.json> · full dataset: <https://whatport.net/ports.json>