# WHATPORT(3827)

## NAME

port 3827 — Netadmin Systems MPI service — An integration port for Netadmin, the Swedish OSS/BSS platform used by fibre and broadband operators.

Protocol: TCP  
IANA: netmpi

## DESCRIPTION

IANA registers 3827 as netmpi, "Netadmin Systems MPI service", one of a small block the vendor holds alongside 3828 (neteh, event handler) and 3829 (neteh-ext). Netadmin Systems sells an operations- and business-support suite that fibre network operators use to provision subscribers and services, and these ports carry its internal component traffic rather than any subscriber-facing protocol. You will only see this inside a telco or municipal-network operator's management estate.

## EXPOSURE

**Do not expose.** This is an operator's provisioning plane — it belongs on a management VLAN, never on an interface a subscriber or the internet can reach.

## CHECK

```sh
nc -vz TARGET 3827
```

## SEE ALSO

- docs — [Netadmin Systems (vendor site)](https://www.netadminsystems.com/) (netadminsystems.com)
- iana — [IANA port registry — 3827 (netmpi)](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=3827) (iana.org)

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