Latest Facebook 500 user agents:

User Agent Platform Device
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/500.0.0.52.98;FBBV/696635672;FBDV/iPhone17,4;FBMD/iPhone;FBSN/iOS;FBSV/26.3.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/700448384;IABMV/1] iOS 26 iPhone 16 Plus
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/500.0.0.52.98;FBBV/696635672;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/18.2.1;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/700448384;IABMV/1] iOS 18 iPhone 14
Mozilla/5.0 (iPhone; CPU iPhone OS 17_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/21D61 [FBAN/FBIOS;FBAV/500.0.0.52.98;FBBV/696635672;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/17.3.1;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/700448384;IABMV/1] iOS 17 iPhone 11
Mozilla/5.0 (Linux; Android 9; W-U300 Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/112.0.5615.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;] Android 9 Ride
Mozilla/5.0 (Linux; Android 9; vivo Z1 Build/PKQ1.180819.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] Android 9 Z1
Mozilla/5.0 (Linux; Android 9; vivo X21i A Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] FBNV/5 Android 9 X21i A
Mozilla/5.0 (Linux; Android 9; vivo X21i A Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] Android 9 X21i A
Mozilla/5.0 (Linux; Android 9; vivo 1725 Build/PKQ1.180819.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] Android 9 X21
Mozilla/5.0 (Linux; Android 9; VIVAX TPC-102 4G Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] Android 9 TPC-102 4G
Mozilla/5.0 (Linux; Android 9; V1945A Build/PKQ1.190626.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] Android 9 Y9s
Mozilla/5.0 (Linux; Android 9; V1941A Build/PKQ1.190302.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;] Android 9 U3
Mozilla/5.0 (Linux; Android 9; V1941A Build/PKQ1.190302.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] Android 9 U3
Mozilla/5.0 (Linux; Android 9; V1938T Build/PQ3A.190605.08021643; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.114 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;] Android 9 X30 Pro
Mozilla/5.0 (Linux; Android 9; U70B Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] Android 9 U70B
Mozilla/5.0 (Linux; Android 9; U1006 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] Android 9 iPlay 10 Pro 10.1"
Mozilla/5.0 (Linux; Android 9; Trekker-X4 Build/PKQ1.190414.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;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/133.0.6943.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] Android 9 Trekker-X4
Mozilla/5.0 (Linux; Android 9; T9S Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] Android 9 T9 S
Mozilla/5.0 (Linux; Android 9; SUGAR T50 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.81 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;IABMV/1;] Android 9 T50
Mozilla/5.0 (Linux; Android 9; SM-X910N Build/PQ3A.190605.09201023; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/124.0.6367.82 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/500.0.0.57.50;] Android 9 SM-X910N