Iridium Prepaid vs. Monthly Airtime Service Plan Comparison
2023 Satellite Airtime Service Plan Buyer’s Guide
Compare Iridium Prepaid and Monthly Airtime Service Plan Options
A handy quick reference chart comparing key features and benefits of prepaid airtime SIM cards and monthly service plans. Choose the Iridium airtime option that’s best for you.
Prepaid SIM Cards
Monthly Service Plans
Best suited for...
Short-term or seasonal usage
Ongoing satellite phone service that won’t expire until you cancel it
No monthly service fees Airtime is pre-purchased for use within a defined expiry period
Maximum convenience, flexibility
No airtime limit or expiry dates to manage
All plans include some airtime each month and affordable rates for additional usage
Global or regional, depending on the card
Airtime is available until it is depleted or expires FREE incoming calls & texts FREE voicemail Dedicated US Phone Number option is not available Unlimited Iridium-to-Iridium Calling option is not available
All plans include some airtime that can also be pooled FREE incoming calls & texts FREE voicemail & call display service Dedicated US Phone Number option is available Unlimited Iridium-to-Iridium Calling option is available
Does my satellite service expire?
Yes, SIM cards expire in 1 to 24 months, depending on card at which time you will be unable to make/receive calls*
No expiration, monthly service does not expire, your satellite service is active until you cancel it
Does my airtime expire?
Yes, prepaid airtime expires in 1 to 24 months depending on the card, and unused airtime will be lost
There is no limit to the airtime you can use, however any unused minutes that are included with your plan expire at the end of each month
Does my satellite phone number expire?
Yes, when your prepaid SIM card expires, you risk losing your number
No, you keep your satellite phone number until you cancel
*Prepaid satellite phone card expiry can be extended on some cards. Airtime can be refilled online anytime. **Share/pool included voice minutes across users on the same account (SMS/text cannot be pooled).
Why Choose an Iridium Prepaid SIM Card?
Prepaid cards are a good option if you aren’t concerned with having an 'always on' satellite airtime service. Features and benefits of prepaid SIM cards from Roadpost:
Ideal for seasonal or short-term use. Prepaid airtime expires within 1-24 months
Airtime is paid for in advance, a good option for those on a fixed budget
Most cards can be refilled online, when you need more airtime
Some prepaid cards offer the option to extend the expiry date for a fee
One limitation is that detailed call records are not provided