Latest Facebook Messenger 161 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.3; th-th; X9006 Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 4 Find 7a
Mozilla/5.0 (Linux; U; Android 4.1.2; es-us; GT-S7390L Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 4 Galaxy Trend Lite
Mozilla/5.0 (Linux; Android 8.1.0; ONEPLUS A3003 Build/OPM2.171019.029; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 3
Mozilla/5.0 (Linux; Android 8.1.0; Nexus 5X Build/OPM2.171019.029; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 Nexus 5X
Mozilla/5.0 (Linux; Android 8.1.0; EML-L29 Build/HUAWEIEML-L29; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 P20
Mozilla/5.0 (Linux; Android 8.0.0; VTR-L09 Build/HUAWEIVTR-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 P10
Mozilla/5.0 (Linux; Android 8.0.0; TA-1021 Build/OPR1.170623.026; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 6
Mozilla/5.0 (Linux; Android 8.0.0; STF-L09 Build/HUAWEISTF-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 Honor 9
Mozilla/5.0 (Linux; Android 8.0.0; SM-N950F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 Galaxy Note 8
Mozilla/5.0 (Linux; Android 8.0.0; SM-G960F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 Galaxy S9
Mozilla/5.0 (Linux; Android 8.0.0; SM-G950F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 Galaxy S8
Mozilla/5.0 (Linux; Android 8.0.0; ONEPLUS A5010 Build/OPR1.170623.032; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 5T
Mozilla/5.0 (Linux; Android 8.0.0; ONEPLUS A3003 Build/OPR6.170623.013; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/66.0.3359.106 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 3
Mozilla/5.0 (Linux; Android 8.0.0; FIG-LX1 Build/HUAWEIFIG-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/161.0.0.18.93;] Android 8 P smart
Mozilla/5.0 (Linux; Android 8.0.0; F5122 Build/34.4.A.2.50; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 Xperia X Dual
Mozilla/5.0 (Linux; Android 8.0.0; BLA-L29 Build/HUAWEIBLA-L29S; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 8 Mate 10 Pro
Mozilla/5.0 (Linux; Android 7.1.2; vivo 1716 Build/N2G47H; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/60.0.3112.116 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 7 V7 Plus
Mozilla/5.0 (Linux; Android 7.1.2; Redmi 4X Build/N2G47H; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 7 Redmi 4X
Mozilla/5.0 (Linux; Android 7.1.1; TA-1020 Build/NMF26O; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 7 3
Mozilla/5.0 (Linux; Android 7.1.1; SM-N950F Build/NMF26X; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/65.0.3325.109 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/161.0.0.18.93;] Android 7 Galaxy Note 8