Latest Facebook Messenger 154 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 8.1.0; Nexus 5X Build/OPM3.171019.013; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 8 Nexus 5X
Mozilla/5.0 (Linux; Android 7.1.2; A0001 Build/NJH47F; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/60.0.3112.78 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 One
Mozilla/5.0 (Linux; Android 7.1.1; VFD 510 Build/NMF26F; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 Smart E8
Mozilla/5.0 (Linux; Android 7.1.1; SM-J510FN Build/NMF26X; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 Galaxy J5 (2016)
Mozilla/5.0 (Linux; Android 7.1.1; SM-A530F Build/NMF26X; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 Galaxy A8
Mozilla/5.0 (Linux; Android 7.1.1; CPH1707 Build/NMF26X; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/61.0.3163.98 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 R11
Mozilla/5.0 (Linux; Android 7.1.1; Aquaris X5 Plus Build/NMF26F; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 Aquaris X5 Plus
Mozilla/5.0 (Linux; Android 7.0; ZUK Z2131 Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 ZUK Z2
Mozilla/5.0 (Linux; Android 7.0; TRT-LX1 Build/HUAWEITRT-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 Y7 (2017)
Mozilla/5.0 (Linux; Android 7.0; SM-J730F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.3.93;] Android 7 Galaxy J7 Pro
Mozilla/5.0 (Linux; Android 7.0; SM-J730F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 Galaxy J7 Pro
Mozilla/5.0 (Linux; Android 7.0; SM-J530F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 Galaxy J5 (2017)
Mozilla/5.0 (Linux; Android 7.0; SM-G950F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 Galaxy S8
Mozilla/5.0 (Linux; Android 7.0; SM-G930F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 Galaxy S7
Mozilla/5.0 (Linux; Android 7.0; SM-G925F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 Galaxy S6 Edge
Mozilla/5.0 (Linux; Android 7.0; SM-A520F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 Galaxy A5 (2017)
Mozilla/5.0 (Linux; Android 7.0; PRA-LX1 Build/HUAWEIPRA-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 P8 Lite (2017)
Mozilla/5.0 (Linux; Android 7.0; PRA-LX1 Build/HUAWEIPRA-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 P8 Lite (2017)
Mozilla/5.0 (Linux; Android 7.0; HUAWEI VNS-L31 Build/HUAWEIVNS-L31; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 P9 Lite
Mozilla/5.0 (Linux; Android 7.0; ASUS_Z017D Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/64.0.3282.137 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/154.0.0.17.93;] Android 7 ZenFone 3