Latest Facebook 188 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; 5024F_EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.159 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 9 1S
Mozilla/5.0 (Linux; Android 9; 5024D_EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 9 1S
Mozilla/5.0 (Linux; Android 9; 5024D_EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/88.0.4324.181 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 9 1S
Mozilla/5.0 (Linux; Android 9; 5024D_EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.141 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 9 1S
Mozilla/5.0 (Linux; Android 9; 5024D_EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.185 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] [ip:79.56.20.62] Android 9 1S
Mozilla/5.0 (Linux; Android 9; 5024D Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.61 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 9 1S
Mozilla/5.0 (Linux; Android 9; 5024D Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.131 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 9 1S
Mozilla/5.0 (Linux; Android 9; 5001A Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 9 1V
Mozilla/5.0 (Linux; Android 8.1.0; SM-N960F Build/M1AJQ; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/68.0.3440.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 8 Galaxy Note 9
Mozilla/5.0 (Linux; Android 8.1.0; ONEPLUS A6003 Build/OPM1.171019.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/68.0.3440.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 8 6
Mozilla/5.0 (Linux; Android 8.1.0; ONEPLUS A6003 Build/OPM1.171019.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/68.0.3440.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.0.51;] Android 8 6
Mozilla/5.0 (Linux; Android 8.1.0; Mi A1 Build/OPM1.171019.026; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/69.0.3497.86 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 8 Mi A1
Mozilla/5.0 (Linux; Android 8.1.0; DRA-L01 Build/HUAWEIDRA-L01; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/68.0.3440.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 8 Y5 (2018)
Mozilla/5.0 (Linux; Android 8.1.0; CLT-L09 Build/HUAWEICLT-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/68.0.3440.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 8 P20 Pro
Mozilla/5.0 (Linux; Android 8.1.0; CAG-L23 Build/HUAWEICAG-L23; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/69.0.3497.100 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 8 Y5 Lite (2018)
Mozilla/5.0 (Linux; Android 8.0.0; WAS-LX1A Build/HUAWEIWAS-LX1A; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/68.0.3440.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 8 P10 Lite
Mozilla/5.0 (Linux; Android 8.0.0; VTR-L09 Build/HUAWEIVTR-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/68.0.3440.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 8 P10
Mozilla/5.0 (Linux; Android 8.0.0; STF-L09 Build/HUAWEISTF-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/69.0.3497.86 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] 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/69.0.3497.86 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 8 Galaxy Note 8
Mozilla/5.0 (Linux; Android 8.0.0; SM-N950F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/68.0.3440.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/188.0.0.44.81;] Android 8 Galaxy Note 8