📱iOS 10.1 - 14B72 stopped being signed for 3 devices
iPad 4 (WiFi), iPad Air (China) and iPad Mini 3 (WiFi)

📱iOS 10.1.1 - 14B150 stopped being signed for 3 devices
iPad Air (China), iPad Mini 2 (WiFi) and iPad Mini 3 (Cellular)

📱iOS 10.1.1 - 14B100 stopped being signed for 2 devices
iPad Mini 2 (WiFi) and iPad Mini 3 (WiFi)

📱iOS 10.0.1 - 14U100 stopped being signed for 1 device
Apple TV 4 (2015)

📱iOS 10.1.1 - 14B150 stopped being signed for 33 devices
iPad 4 (WiFi), iPad 4 (GSM), iPad 4 (Global), iPad Air (WiFi), iPad Air (Cellular), iPad Mini 2 (Cellular), iPad Mini 2 (China), iPad Mini 3 (WiFi), iPad Mini 3 (China), iPad Mini 4 (WiFi), iPad Mini 4 (Cellular), iPad Air 2 (WiFi), iPad Air 2 (Cellular), iPad Pro 9.7-inch (WiFi), iPad Pro 9.7-inch (Cellular), iPad Pro 12.9-inch (WiFi), iPad Pro 12.9-inch (Cellular), iPhone 5 (GSM), iPhone 5 (Global), iPhone 5c (GSM), iPhone 5c (Global), iPhone 5s (GSM), iPhone 5s (Global), iPhone 6+, iPhone 6, iPhone 6s, iPhone 6s+, iPhone SE, iPhone 7 (Global), iPhone 7 Plus (Global), iPhone 7 (GSM), iPhone 7 Plus (GSM) and iPod touch 6

📱iOS 10.1.1 - 14B100 stopped being signed for 34 devices
iPad 4 (WiFi), iPad 4 (GSM), iPad 4 (Global), iPad Air (WiFi), iPad Air (Cellular), iPad Air (China), iPad Mini 2 (Cellular), iPad Mini 2 (China), iPad Mini 3 (Cellular), iPad Mini 3 (China), iPad Mini 4 (WiFi), iPad Mini 4 (Cellular), iPad Air 2 (WiFi), iPad Air 2 (Cellular), iPad Pro 9.7-inch (WiFi), iPad Pro 9.7-inch (Cellular), iPad Pro 12.9-inch (WiFi), iPad Pro 12.9-inch (Cellular), iPhone 5 (GSM), iPhone 5 (Global), iPhone 5c (GSM), iPhone 5c (Global), iPhone 5s (GSM), iPhone 5s (Global), iPhone 6+, iPhone 6, iPhone 6s, iPhone 6s+, iPhone SE, iPhone 7 (Global), iPhone 7 Plus (Global), iPhone 7 (GSM), iPhone 7 Plus (GSM) and iPod touch 6

📱iOS 10.1 - 14B72 stopped being signed for 29 devices
iPad 4 (GSM), iPad 4 (Global), iPad Air (WiFi), iPad Air (Cellular), iPad Mini 2 (WiFi), iPad Mini 2 (Cellular), iPad Mini 2 (China), iPad Mini 3 (Cellular), iPad Mini 3 (China), iPad Mini 4 (WiFi), iPad Mini 4 (Cellular), iPad Air 2 (WiFi), iPad Air 2 (Cellular), iPad Pro 9.7-inch (WiFi), iPad Pro 9.7-inch (Cellular), iPad Pro 12.9-inch (WiFi), iPad Pro 12.9-inch (Cellular), iPhone 5 (GSM), iPhone 5 (Global), iPhone 5c (GSM), iPhone 5c (Global), iPhone 5s (GSM), iPhone 5s (Global), iPhone 6+, iPhone 6, iPhone 6s, iPhone 6s+, iPhone SE and iPod touch 6

📱iOS 10.1 - 14B72c stopped being signed for 4 devices
iPhone 7 (Global), iPhone 7 Plus (Global), iPhone 7 (GSM) and iPhone 7 Plus (GSM)

📱iOS 8.4.1 - 12H523 stopped being signed for 2 devices
Apple TV 3 and Apple TV 3 (2013)

📱iOS 10.2.1 - 14D27 has been released for 36 devices
iPad 4 (WiFi), iPad 4 (GSM), iPad 4 (Global), iPad Air (WiFi), iPad Air (Cellular), iPad Air (China), iPad Mini 2 (WiFi), iPad Mini 2 (Cellular), iPad Mini 2 (China), iPad Mini 3 (WiFi), iPad Mini 3 (Cellular), iPad Mini 3 (China), iPad Mini 4 (WiFi), iPad Mini 4 (Cellular), iPad Air 2 (WiFi), iPad Air 2 (Cellular), iPad Pro 9.7-inch (WiFi), iPad Pro 9.7-inch (Cellular), iPad Pro 12.9-inch (WiFi), iPad Pro 12.9-inch (Cellular), iPhone 5 (GSM), iPhone 5 (Global), iPhone 5c (GSM), iPhone 5c (Global), iPhone 5s (GSM), iPhone 5s (Global), iPhone 6+, iPhone 6, iPhone 6s, iPhone 6s+, iPhone SE, iPhone 7 (Global), iPhone 7 Plus (Global), iPhone 7 (GSM), iPhone 7 Plus (GSM) and iPod touch 6

Do not join the test channel I forwarded this message from.
There's nothing more than spam there

📱iOS 4.1 - 8B117 started being signed for 4 devices
iPhone 3G, iPhone 3GS, iPod touch 2G and iPod touch 3

📱iOS 6.1.4 - 10B809 started being signed for 2 devices
Apple TV 2G and Apple TV 3

📱iOS 7.1.2 - 11D258 started being signed for 1 device
Apple TV 2G

📱iOS 5.1.1 - 9B206 started being signed for 1 device
iPad 1

📱iOS 6.1.6 - 10B500 started being signed for 2 devices
iPhone 3GS and iPod touch 4

📱iOS 7.1.2 - 11D257 started being signed for 3 devices
iPhone 4 (GSM), iPhone 4 (GSM / 2012) and iPhone 4 (CDMA)

📱iOS 10.2 - 14W265 has been released for 1 device
Apple TV 4 (2015)

📱iOS 10.3 - 14E277 has been released for 37 devices
iPad 4 (WiFi), iPad 4 (GSM), iPad Air (WiFi), iPad Air (China), iPad Mini 2 (WiFi), iPad Mini 3 (China), iPad Mini 4 (WiFi), iPad6,11, iPad Pro 12.9-inch (WiFi), iPhone 5c (Global), iPhone 5s (GSM), iPod touch 6, iPad 4 (Global), iPad Air (Cellular), iPad Mini 2 (Cellular), iPad Mini 2 (China), iPad Mini 3 (WiFi), iPad Mini 3 (Cellular), iPad Mini 4 (Cellular), iPad Air 2 (WiFi), iPad Air 2 (Cellular), iPad Pro 9.7-inch (WiFi), iPad Pro 9.7-inch (Cellular), iPad Pro 12.9-inch (Cellular), iPhone 5 (GSM), iPhone 5 (Global), iPhone 5c (GSM), iPhone 5s (Global), iPhone 6+, iPhone 6, iPhone 6s, iPhone 6s+, iPhone SE, iPhone 7 (Global), iPhone 7 Plus (Global), iPhone 7 (GSM) and iPhone 7 Plus (GSM)

📱iOS 10.3.1 - 14E304 has been released for 33 devices
iPad 4 (WiFi), iPad 4 (GSM), iPad 4 (Global), iPad Air (WiFi), iPad Air (Cellular), iPad Air (China), iPad Mini 2 (China), iPad Mini 3 (WiFi), iPad Mini 3 (Cellular), iPad Mini 3 (China), iPad Mini 4 (WiFi), iPad Mini 4 (Cellular), iPad Air 2 (WiFi), iPad Air 2 (Cellular), iPad 5 (WiFi), iPad Pro 9.7-inch (WiFi), iPad Pro 9.7-inch (Cellular), iPad Pro 12.9-inch (WiFi), iPad Pro 12.9-inch (Cellular), iPhone 5 (GSM), iPhone 5 (Global), iPhone 5c (GSM), iPhone 5c (Global), iPhone 5s (GSM), iPhone 6+, iPhone 6, iPhone 6s, iPhone 6s+, iPhone 7 (Global), iPhone 7 Plus (Global), iPhone 7 (GSM), iPhone 7 Plus (GSM) and iPod touch 6