# WHATPORT(3945)

## NAME

port 3945 — EMCADS server (registered) — Registered as "EMCADS Server Port" for a remote-access product that no longer exists as a going concern.

Protocol: TCP  
IANA: emcads

## DESCRIPTION

IANA registers 3945 as emcads, "EMCADS Server Port", to a private assignee. EMCADS was the transport of a token-based secure remote-access gateway, but no protocol specification was ever published and the product is off the market, so nothing about its wire format or cryptography can be verified today. Treat the registration as a historical label. Listeners on 3945 in a modern estate are far more likely to be an unrelated application than EMCADS.

## EXPOSURE

**Do not expose.** It was a gateway built to face the internet, but it is unmaintained and unpatched, which is exactly the combination that should not be internet-reachable now.

## CHECK

```sh
nc -vz TARGET 3945
```

## SEE ALSO

- iana — [IANA port registry — 3945 (emcads)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=3945) (iana.org)

---

HTML: <https://whatport.net/3945/> · JSON: <https://whatport.net/3945.json> · full dataset: <https://whatport.net/ports.json>