Iridium Satellite Phone Global Prepaid SIM Card with 500 Minutes (12 Month Validity) 500 Minutes valid for 1 year (12 months) on the Iridium Satellite Network Airtime can be rolled over when refilled before expiration. Check with specific seller on pricing and policies. Works in all Iridium handsets: 9500, 9505, 9505A, 9555, Extreme and Iridium GO Satellite Hotspot No charge for incoming voice calls and text messages. Outgoing calls to any global landline or mobile phone can be made at a flat rate per minute. Check with seller on activation, renewal and refill policies and procedures.