SIM cards

Thanks to c3gsm, we’ll have a stock of about 200 SIM cards to sell at the shop. Expect to pay around £3 per SIM.

Bringing your own

We need to know the authentication keys of your SIM in order for it to work on our network.

If you have a SIM card from a CCC event, like CCCamp23 or 37c3/38c3, you can ask c3gsm for the keys. Make a note of the ICCID of your SIM card (it’s written on the card itself!), and send that to ticket@c3gsm.de along with a brief note asking them for the IMSI, Ki and OPC values.

When you get the keys, send them to us at poc@emfcamp.org and we’ll add them into our system.

2024 EMF SIMs

If you previously had a SIM at EMF then it may already be registered, try popping it in your handset of choice and see if it connects.

If it doesn’t connect after about 5 minutes, then you’ll need to enter the SIM details in our Web UI.

Self-Service Provisioning

To provision your SIM card you must have the secret key material (Ki and OPc), as well as the IMSI and ICCID.

You can add your SIM on the Electromagnetic Telecom website here.

You will be assigned a temporary number once the SIM is added - you can change this to a number you have registered by dialing the registration code.