Iridium SIM cards start with zero balance and validity; simply choose the option appropriate for your needs.

You can then extend your validity at a later date if you need to by purchasing another Prepaid Voucher or a 30-day extension before the original expiry date.

If the validity period is not extended, your SIM card will expire and become unusable. Any minutes remaining will be lost and your SIM will enter a 270-day grace period. Within this time, you can reactivate the SIM by adding a new voucher, however, the original balance will be lost and will not be added to the new balance.

After the grace period has ended, the SIM will automatically deactivate. You will need to purchase a new Iridium airtime SIM Card and prepaid voucher. Reactivating a deactivated card incurs a Reactivation Only charge plus the cost of a new airtime voucher.

If you did not originally purchase your SIM card from Global Telesat Communications we will be unable to add credit to your card. However, Iridium SIM cards are free of charge so why not order a SIM card from us as well?
Iridium Sat Phone Prepaid SIMs >

Revised Iridium SIM Reactivation Process
In order to be more sustainable by reducing SIM card waste and physical shipments, and to get customers activated onto the Iridium network more quickly, Iridium has redeveloped its SIM card reactivation process. This new streamlined approach also means you can release your Iridium SIM card for a fraction of the previous cost.

Conditions apply. See below.

$15 SIM card release charge only applies to Iridium SIM card reactivations for Iridium Handsets and the Iridium GO!.
The Iridium SIM card must have been previously deactivated by GTC.
Please contact us if you need to check your SIM applies or if you have any questions.

Frequently Asked Questions

How do I check the balance on my Iridium Satellite Phone?
Dial 2888 from the sat phone. If you are unable to find your balance, please contact us for an estimated balance.

How do I know when my balance will expire?
Once you have purchased your airtime voucher and we have added it to your SIM card, we will confirm your new expiry date via email.
Where can I find the platform for sending a free message to my Iridium Satellite Phone?
The free Iridium messaging can be sent from here: https://messaging.iridium.com/

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