Latest Facebook 511 user agents:

User Agent Platform Device
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone16,2;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 15 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 26_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23B85 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone14,5;FBMD/iPhone;FBSN/iOS;FBSV/26.1;FBSS/3;FBID/phone;FBLC/th_Qaau_TH;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 13
[FBAN/FB4A;FBAV/511.0.0.73.36;FBBV/728628417;FBDM/{density=3.0,width=1080,height=2290};FBLC/zh_Qaau_CN;FBRV/0;FBCR/Maxis;FBMF/OPPO;FBBD/OPPO;FBPN/com.facebook.katana;FBDV/CPH2059;FBSV/11;FBOP/1;FBCA/arm64-v8a:;] Android 11 A92
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone14,3;FBMD/iPhone;FBSN/iOS;FBSV/26.5;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_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22F76 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone14,5;FBMD/iPhone;FBSN/iOS;FBSV/18.5;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/732548456;IABMV/1] iOS 18 iPhone 13
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F81 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone18,2;FBMD/iPhone;FBSN/iOS;FBSV/26.5.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 17 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22F76 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone15,4;FBMD/iPhone;FBSN/iOS;FBSV/18.5;FBSS/3;FBID/phone;FBLC/fr_FR;FBOP/5;FBRV/732548456;IABMV/1] iOS 18 iPhone 15
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone15,2;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1];FBNV/1 iOS 26 iPhone 14 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 [FBAN/FBIOS;FBAV/511.0.0.47.107;FBBV/746600222;FBDV/iPhone14,4;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBCR/;FBID/phone;FBLC/fr_FR;FBOP/80] iOS 18 iPhone 13 Mini
Mozilla/5.0 (iPhone; CPU iPhone OS 18_7_8 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22H352 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone17,2;FBMD/iPhone;FBSN/iOS;FBSV/18.7.8;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 18 iPhone 16 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone15,2;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 14 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 17_6 like Mac OS X; pl_PL) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 FBAN/FBIOS;FBAV/511.0.0.38.105;FBBV/712345679;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/17.6;FBSS/2;FBID/phone;FBLC/pl_PL;FBOP/5 iOS 17 iPhone 14
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/iPhone16,2;FBMD/iPhone;FBSN/iOS;FBSV/18.3.2;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 18 iPhone 15 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone14,8;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 14 Plus
Mozilla/5.0 (iPhone; CPU iPhone OS 26_4_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23E261 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone18,3;FBMD/iPhone;FBSN/iOS;FBSV/26.4.2;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 17
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone14,4;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 13 Mini
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone13,3;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 12 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 26_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23B85 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone17,5;FBMD/iPhone;FBSN/iOS;FBSV/26.1;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone 16e
Mozilla/5.0 (iPhone; CPU iPhone OS 26_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23C55 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone14,6;FBMD/iPhone;FBSN/iOS;FBSV/26.2;FBSS/2;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/732548456;IABMV/1] iOS 26 iPhone SE (2022)
Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22H20 [FBAN/FBIOS;FBAV/511.0.0.38.96;FBBV/727668296;FBDV/iPhone14,6;FBMD/iPhone;FBSN/iOS;FBSV/18.7;FBSS/2;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/732548456;IABMV/1] iOS 18 iPhone SE (2022)