Global operations across 5 continents.
Select your region

Head office: Great Yarmouth, UK

Regional head office: Chandler, Arizona

Regional head office: Perth, Western Australia

Regional head office: Singapore

Our exclusive packages

40% Off Anker Ka-band

Enjoy summer with 40% off Anker Ka-band with AST


AST OPTIMA package

The all-inclusive 12 or 36-month fixed fee Iridium Certus® package for maritime


Iridium Certus® Cashback Promotion

Promotional credit for swap out of Iridium or selected hardware


Prepay Top Up Tool

Purchase Inmarsat and Iridium vouchers anytime online for greater connectivity with satellite communications. Pay with your Visa or MasterCard (Amex and Diners are not available).


Please ensure if you own an IsatPhone Pro that it has firmware version 5.8 or above installed.

Please check your phone's settings by selecting Menu>Settings>About. Detailed instructions on how to upgrade your firmware can be found by visiting

Inmarsat Unit Transfer

Please make sure your satellite phone number is correct. Vouchers redeemed to the wrong satellite number cannot be transferred to the intended phone number.

Checking Your Balance

To check your current balance, select Menu>Settings>Prepay. Your account balance and expiry date will show on your phone screen. This service is free of charge.

Why our Prepaid is Better
  • No on-going costs, recharge whenever you need
  • Complete multiple top-ups for multiple services at the same time

AST Top-up Portal Log-In

Get in touch

Finding the perfect solution, wherever you are.

For further details or to request a call from one of our sales team please contact us on