Inmarsat Prepaid Airtime – Top Up Your SIM


Prepaid unit validity varies from 90 Days to 12 Months.

Enter Your Inmarsat Prepaid Satellite Phone Number – (example: 12 digits 870712345678 with NO SPACES)
NOTE – ** you cannot put spaces in the phone number **

Vouchers need to be activated within 12 months

Example Date – 12/09/23

SKU GSFS-PreAir-IN Categories ,


Inmarsat Prepaid is a great option for the casual IsatPhone Pro, IsatPhone2 and Beam Oceana users. Cards can be activated quickly and offer a wide selection of airtime and validity options.

Our Inmarsat Prepaid Cards have no hidden fees, no activation fees and include voicemail at no cost.

*All prepaid SIM cards are shipped inactive. Contact GlobalSat between 8:00 am and 4 pm, Monday to Friday to activate your prepaid SIM card. Activation can be completed within two business hours.

Units Rate per call

  • 1.3 units per minute Voice & Data calls (approximately 192 minutes per 250 units)
  • 0.5 units per outgoing SMS (approximately 500 SMS per 250 units)
  • Calls billed in 15 second increments
  • Free incoming SMS
  • Voicemail Included
  • No Activation Fees


The number of units per various services is outlined below:

Fixed – Voice / Fax / Data – 1.30
Cellular – Voice / Fax / Data – 1.30
SMS (Max 160 Characters) – 0.50
Voice Mail – 1.30
FleetBroadband Voice – 2.50
SwiftBroadband Voice – 2.50
GSPS and SPS Voice – 1.30
Inmarsat B – Voice / Fax / Data – 3.40
Inmarsat M – Voice / Fax / Data – 2.90
Inmarsat Gan/Fleet/Swift Voice – 2.50
Inmarsat Aero Voice – 4.90
Iridium Voice – 11.00
Globalstar Voice – 8.00
Thuraya Voice – 5.00
Other MSS Carriers – 6.90


Critical Information

  • Prices quoted are subject to change without prior notice.
  • All prices are quoted in AUD and are inclusive of GST.
  • All packages are applicable to individual SIMs. Prepaid amounts cannot be dispersed against numerous SIM cards.
  • If a SIM is deactivated within the minimum duration period, there will be no refund on already paid prepaid amounts.
  • Vouchers are valid for 180 days from redemption.
  • The validity means the time a voucher is good to keep (365 days) while expiry is the period on can use units once they are loaded on the SIM. Any unused units at the end of the expiry period
  • will expire and are non-refundable. Validity of each SIM is 730 days.
  • All vouchers must be redeemed within 12 months of date of purchase.
  • If the SIM is topped up prior to the expiry of validity any unused units will be added to the new validity.
  • Suspension: when a SIM card is suspended, the expiry period of the remaining units continues meaning no extra time is extended

Additional information

Choose Airtime

Admin only $(1), 100 Units $(215), 250 Units $(395), 500 Units $(749), 1000 Units $(1290), 2500 Units $(2890), 5000 Units $(4995)

Check Your Balance

To check you balance, from Main Screen enter *106# and press the green key.

Your current balance and expiry date will be shown on the screen (this is free of charge).

Expiry of units means the period in which units can be used once loaded onto the SIM card. Any unused units at the end of the expiry period will expire and are not refundable. The expiry period commences once balances have been successfully topped up.