How do I check my prepaid balance?
There are two options available.
1. Dial 2888 (+2888 or 002888 will also work) on your Iridium phone and press the green key.
2. To receive an SMS message with your prepaid balance, send a blank SMS message to 2888 (+2888 or 002888 will also work). The Iridium system will respond with the number of remaining ISU-PSTN minutes in the account, the number of days until the account expires, and the date and time (GMT) of expiration in English.
Note: The prepaid balance is calculated based on ISU-PSTN minutes. If you place a large amount of ISU-other satellite calls, the announced minutes will be higher than actual. If you place many ISU-ISU calls, the announced minutes will be lower than actual.