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Iridium Prepaid Satellite Airtime
Freuently Asked Questions
Iridium prepaid airtime allows you to use your Iridium satellite phone without a monthly contract. You purchase a bundle of units with a set validity period, and can make calls, send SMS messages, and use supported data services until the units or validity expire.
Iridium prepaid SIM cards are compatible with supported Iridium satellite phones, including the Iridium Extreme®, Iridium 9555, and selected Iridium GO! devices. If you're unsure which airtime plan is suitable for your device, contact our team for advice.
Validity depends on the prepaid voucher purchased. Plans are available with validity periods ranging from a few months to more than a year, with the option to extend service by applying a top-up before expiry.
Once the validity period ends, any remaining units may be lost if the SIM is not renewed within the permitted grace period. To keep your number active and retain unused units where applicable, top-ups should be applied before the expiry date.
Yes. Additional airtime can be added at any time by purchasing and applying a compatible Iridium prepaid top-up voucher. Top-ups can extend the validity of your SIM and add additional units to your balance.
Yes. Iridium operates the world's only truly global satellite network, providing coverage across all continents, oceans, and polar regions. This makes it a popular choice for expeditions, maritime users, remote workers, and emergency preparedness applications.
Calls, SMS messages, voicemail, and data services are charged in units rather than minutes. Different services consume units at different rates, so the number of call minutes available will vary depending on how the phone is used.
Yes. Your Iridium satellite phone can receive incoming calls while your prepaid SIM remains active. Callers will need to use the correct Iridium phone number or alternative calling method associated with your service.
Prepaid airtime is often the best choice for occasional users, seasonal projects, expeditions, and emergency backup communications. Monthly plans are generally more suitable for users who require regular satellite phone usage throughout the year.
In most cases, prepaid airtime can be activated quickly once the SIM details have been provided. If you're travelling soon, we recommend purchasing and activating your airtime before departure to ensure everything is working correctly.
Yes. Supported Iridium devices can access low-speed satellite data services using prepaid airtime. Data usage is charged in units and is typically used for email, weather information, tracking applications, and other low-bandwidth communications.
Global plans provide coverage across the entire Iridium network, while regional plans may be restricted to specific geographic areas. Regional plans can offer a more cost-effective option for users operating within a defined coverage region.
If you're purchasing airtime for an existing active SIM, a new SIM card is not usually required. New SIM cards are typically supplied when purchasing a new Iridium service or replacing an existing SIM.
Yes. Many customers choose prepaid airtime to keep a satellite phone available for emergency preparedness, business continuity, severe weather events, offshore operations, or travel to remote areas without committing to a monthly contract.