Latest Facebook 512 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 15; V2430 Build/AP3A.240905.015.A2_NN; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.159 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;IABMV/1;] Android 15 Y04
Mozilla/5.0 (Linux; Android 12; Mi 10 Pro Build/SKQ1.211006.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/114.0.5735.196 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;] Android 12 Mi 10 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 17_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/21B91 [FBAN/FBIOS;FBAV/512.0.0.52.99;FBBV/731098301;FBDV/iPhone11,8;FBMD/iPhone;FBSN/iOS;FBSV/17.1.1;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/735898231;IABMV/1] iOS 17 iPhone XR
Mozilla/5.0 (Linux; Android 10; ELS-N04 Build/HUAWEIELS-N04; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;] Android 10 P40 Pro
Mozilla/5.0 (Linux; Android 9; SM-F900U Build/PPR1.180610.011; ) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/138.0.7204.169 Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;] Android 9 Galaxy Fold
Mozilla/5.0 (iPhone; CPU iPhone OS 18_2_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22C161 [FBAN/FBIOS;FBAV/512.0.0.52.99;FBBV/731098301;FBDV/iPhone14,4;FBMD/iPhone;FBSN/iOS;FBSV/18.2.1;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/735898231;IABMV/1] iOS 18 iPhone 13 Mini
Mozilla/5.0 (iPhone; CPU iPhone OS 26_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D127 [FBAN/FBIOS;FBAV/512.0.0.52.99;FBBV/731098301;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/26.3;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/735898231;IABMV/1] iOS 26 iPhone 11
Mozilla/5.0 (iPhone; CPU iPhone OS 18_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22E252 [FBAN/FBIOS;FBAV/512.0.0.52.99;FBBV/731098301;FBDV/iPhone17,3;FBMD/iPhone;FBSN/iOS;FBSV/18.4.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/735898231;IABMV/1] iOS 18 iPhone 16
Mozilla/5.0 (iPhone; CPU iPhone OS 26_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D8133 [FBAN/FBIOS;FBAV/512.0.0.52.99;FBBV/731098301;FBDV/iPhone15,4;FBMD/iPhone;FBSN/iOS;FBSV/26.3.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/735898231;IABMV/1] iOS 26 iPhone 15
Mozilla/5.0 (Linux; Android 15; SM-A156U Build/AP3A.240905.015.A2; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;IABMV/1;] Android 15 Galaxy A15 5G
Mozilla/5.0 (iPhone; CPU iPhone OS 17_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/21E236 [FBAN/FBIOS;FBAV/512.0.0.52.99;FBBV/731098301;FBDV/iPhone11,8;FBMD/iPhone;FBSN/iOS;FBSV/17.4.1;FBSS/2;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/735898231;IABMV/1] iOS 17 iPhone XR
Mozilla/5.0 (Linux; Android 10; CPH2185 Build/QP1A.190711.020; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;IABMV/1;] Android 10 A15
Mozilla/5.0 (Linux; Android 13; SM-A127M Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.122 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;IABMV/1;] Android 13 Galaxy A12
Mozilla/5.0 (Linux; Android 9; ZT216_1 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.84 Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;IABMV/1;] Android 9 ZT216
Mozilla/5.0 (Linux; Android 9; YK_P30 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.84 Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;IABMV/1;] Android 9 YK P30
Mozilla/5.0 (Linux; Android 9; Y4800 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.84 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;IABMV/1;] Android 9 Y4800
Mozilla/5.0 (Linux; Android 9; X20 PRO Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.84 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;IABMV/1;] Android 9 X20 Pro
Mozilla/5.0 (Linux; Android 9; Trekker-X4 Build/PKQ1.190414.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.84 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;IABMV/1;] FBNV/5 Android 9 Trekker-X4
Mozilla/5.0 (Linux; Android 9; Trekker-X4 Build/PKQ1.190414.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.84 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;IABMV/1;] Android 9 Trekker-X4
Mozilla/5.0 (Linux; Android 9; TECNO RB8S Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.84 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/512.0.0.64.75;IABMV/1;] FBNV/5 Android 9 Pop 2X Plus