Latest Facebook Messenger 331 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; VKY-L09 Build/HUAWEIVKY-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.61 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 P10 Plus
Mozilla/5.0 (Linux; Android 9; TA-1004 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 8
Mozilla/5.0 (Linux; Android 9; SM-N950F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.82 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Galaxy Note 8
Mozilla/5.0 (Linux; Android 9; SM-J530F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.82 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Galaxy J5 (2017)
Mozilla/5.0 (Linux; Android 9; SM-J330FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.82 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Galaxy J3 (2017)
Mozilla/5.0 (Linux; Android 9; SM-G960F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.82 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Galaxy S9
Mozilla/5.0 (Linux; Android 9; SM-G950F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.82 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Galaxy S8
Mozilla/5.0 (Linux; Android 9; Redmi 7A Build/PKQ1.190319.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/85.0.4183.127 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Redmi 7A
Mozilla/5.0 (Linux; Android 9; PDBM00 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.110 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 A8
Mozilla/5.0 (Linux; Android 9; Note_7P Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.82 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Note 7P
Mozilla/5.0 (Linux; Android 9; Neffos C9 Max Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/95.0.4638.50 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 C9 Max
Mozilla/5.0 (Linux; Android 9; MRD-LX2 Build/HUAWEIMRD-LX2; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.116 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Y6 Pro (2019)
Mozilla/5.0 (Linux; Android 9; MRD-LX1 Build/HUAWEIMRD-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.82 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Y6 (2019)
Mozilla/5.0 (Linux; Android 9; Moto Z3 Play Build/PPWS29.131-27-1-27; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.82 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Moto Z3 Play
Mozilla/5.0 (Linux; Android 9; moto g(6) play Build/PPPS29.55-35-18-7; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.61 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Moto G6 Play
Mozilla/5.0 (Linux; Android 9; moto e(6) plus Build/PTBS29.401-58-8; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.61 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Moto E6 Plus
Mozilla/5.0 (Linux; Android 9; Mi 9 SE Build/PKQ1.181121.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.61 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Mi 9 SE
Mozilla/5.0 (Linux; Android 9; MAR-LX1A Build/HUAWEIMAR-L21A; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.82 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 P30 Lite
Mozilla/5.0 (Linux; Android 9; JSN-L23 Build/HONORJSN-L23; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.61 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Honor 8X
Mozilla/5.0 (Linux; Android 9; JSN-L21 Build/HONORJSN-L21; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.82 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/331.0.0.15.119;] Android 9 Honor 8X