You can usually find your OTO ID on the fiber optic wall socket (OTO) in your home.

What does an OTO socket look like?

The OTO is a small wall-mounted box with one or more optical ports.
It is often labeled with a sticker showing your OTO ID.

Where is the OTO socket located?

1. Most common case: in the living area

The OTO is typically found:

• near the analogue TV socket.
• In the living room.
• Close to the main entrance.
• Inside a distribution cabinet.

2. Other possible locations

• In new homes, the OTO may be inside the electrical cabinet.

Example of an OTO within electrical cabinet

• In villas or buildings converted into apartments, it may be located in unusual spots (e.g. basement, storage area, or entry hall).

Need more information?

Check the official sources: BAKOM – FTTH Working Groups (admin.ch)