Iridium GO! exec® Pay Monthly PlansIridium GO! exec Pay Monthly Plans Which is the best plan for you? There are five pay monthly airtime options and one pay annually option available for your Iridium GO! exec WiFi Hotspot. Activation Fee The Iridium GO! exec comes with a 3 month minimum term as standard, or a 1 month minimum term when you pay a $25 activation fee. Data Sessions IP Data Sessions are charged in 100 Byte increments (minimum 5 kB 5,000 Byte charge per session) Monthly