Latest Facebook 511 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 14; 23124RN87I Build/UP1A.231005.007; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;IABMV/1;] Android 14 Redmi 13C 5G
Mozilla/5.0 (iPhone; CPU iPhone OS 18_6_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22G100 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone14,5;FBMD/iPhone;FBSN/iOS;FBSV/18.6.2;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 18 iPhone 13
Mozilla/5.0 (iPad; CPU OS 26_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D127 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPad15,8;FBMD/iPad;FBSN/iPadOS;FBSV/26.3;FBSS/2;FBID/tablet;FBLC/en_US;FBOP/5;FBRV/732548456] iPadOS 26 iPad 11 10.9"
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/511.0.0.38.96;FBBV/727668296;FBDV/iPhone14,5;FBMD/iPhone;FBSN/iOS;FBSV/26.3.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 13
Mozilla/5.0 (Linux; Android 11; RMX3231 Build/RP1A.201005.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;IABMV/1;] Android 11 C11 (2021)
Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22D82 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone13,2;FBMD/iPhone;FBSN/iOS;FBSV/18.3.2;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 18 iPhone 12
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/511.0.0.38.96;FBBV/727668296;FBDV/iPhone14,3;FBMD/iPhone;FBSN/iOS;FBSV/26.3.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 13 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22D82 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone17,3;FBMD/iPhone;FBSN/iOS;FBSV/18.3.2;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 18 iPhone 16
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/511.0.0.38.96;FBBV/727668296;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/26.3;FBSS/3;FBID/phone;FBLC/fr_FR;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 14
Mozilla/5.0 (Linux; Android 12; SM-A336B Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.57 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;IABMV/1;] Android 12 Galaxy A33 5G
Mozilla/5.0 (iPhone; CPU iPhone OS 26_2_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23C71 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone13,2;FBMD/iPhone;FBSN/iOS;FBSV/26.2.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 12
Mozilla/5.0 (Linux; Android 9; Z6621O Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.57 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;IABMV/1;] Android 9 Optus X Vista
Mozilla/5.0 (Linux; Android 9; YK_P30 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.57 Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;IABMV/1;] FBNV/5 Android 9 YK P30
Mozilla/5.0 (Linux; Android 9; YK_P30 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.57 Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;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/136.0.7103.57 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;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/136.0.7103.57 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;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/136.0.7103.57 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;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/136.0.7103.57 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;IABMV/1;] Android 9 Trekker-X4
Mozilla/5.0 (Linux; Android 9; SM-T867V Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.57 Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;IABMV/1;] Android 9 Galaxy Tab S6 10.5" LTE
Mozilla/5.0 (Linux; Android 9; SM-T827V Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/136.0.7103.57 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/511.0.0.73.36;IABMV/1;] Android 9 Galaxy Tab S3 9.7" LTE