Does A Sim Card Expire If Not Used. For unused SIM cards it will expire after a month from your pickup date. The encryption keys are then tied to a fresh new simcard with a new expiration date.

There are two situations pay as you go PAYG and contract. This means you will not be able to make or receive calls including calls to emergency numbers. A prepaid account is automatically closed if the account balance is 0 for more than 60 days.
Have you used this card with your Canon before.
This means you will not be able to make or receive calls including calls to emergency numbers. Note that the data plans you purchase for the SIM card do have validity periods which expire after. A prepaid account is automatically closed if the account balance is 0 for more than 60 days. As noted above you need to open a new account with a new SIM card and new number.
