Latest Facebook 551 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 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,5;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/vi_VN;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 11 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,5;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 11 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 26_4_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23E261 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/26.4.2;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906493495;IABMV/1] iOS 26 iPhone 14
Mozilla/5.0 (iPhone; CPU iPhone OS 18_0_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22A3370 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone13,2;FBMD/iPhone;FBSN/iOS;FBSV/18.0.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 18 iPhone 12
Mozilla/5.0 (iPhone; CPU iPhone OS 15_7_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/19H117 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone9,3;FBMD/iPhone;FBSN/iOS;FBSV/15.7.1;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 15 iPhone 7
Mozilla/5.0 (iPhone; CPU iPhone OS 16_1_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20B110 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone13,2;FBMD/iPhone;FBSN/iOS;FBSV/16.1.2;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1];FBNV/1 iOS 16 iPhone 12
Mozilla/5.0 (iPhone; CPU iPhone OS 16_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20C65 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone11,8;FBMD/iPhone;FBSN/iOS;FBSV/16.2;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 16 iPhone XR
Mozilla/5.0 (iPad; CPU OS 26_4_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23E261 Safari/604.1 [FBAN/FBIOS;FBAV/551.0.0.39.67;FBBV/897790831;FBDV/iPad15,5;FBMD/iPad;FBSN/iPadOS;FBSV/26.4.2;FBSS/2;FBID/tablet;FBLC/de_DE;FBOP/5;FBRV/0;IABMV/1] iPadOS 26 iPad Air 7 13" WiFi
Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22H352 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/18.7.8;FBSS/2;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1] iOS 18 iPhone 11
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 Safari/604.1 [FBAN/FBIOS;FBAV/551.0.0.39.67;FBBV/897790831;FBDV/iPhone16,1;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/0;IABMV/1] iOS 26 iPhone 15 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 16_7_15 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20H380 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone10,3;FBMD/iPhone;FBSN/iOS;FBSV/16.7.15;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1] iOS 16 iPhone X
Mozilla/5.0 (iPhone; CPU iPhone OS 26_4_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23E261 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone16,2;FBMD/iPhone;FBSN/iOS;FBSV/26.4.2;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 15 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 18_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22A3354 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone14,3;FBMD/iPhone;FBSN/iOS;FBSV/18.0;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1] iOS 18 iPhone 13 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 16_7_15 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20H380 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone10,3;FBMD/iPhone;FBSN/iOS;FBSV/16.7.15;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1] iOS 16 iPhone X
Mozilla/5.0 (iPhone; CPU iPhone OS 18_6_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22G100 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/18.6.2;FBSS/3;FBID/phone;FBLC/en_Qaau_GB;FBOP/5;FBRV/906413714;IABMV/1] iOS 18 iPhone 14
Mozilla/5.0 (iPhone; CPU iPhone OS 26_4_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23E261 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone16,1;FBMD/iPhone;FBSN/iOS;FBSV/26.4.2;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 15 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1];FBNV/1 iOS 26 iPhone 14
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 14
[FBAN/FB4A;FBAV/551.1.0.58.63;FBBV/900039875;FBDM/{density=2.8125,width=1080,height=2340};FBLC/en_US;FBRV/905683097;FBCR/Verizon ;FBMF/samsung;FBBD/samsung;FBPN/com.facebook.katana;FBDV/SM-A366U;FBSV/16;FBOP/1;FBCA/arm64-v8a:;] Android 16 Galaxy A36 5G
Mozilla/5.0 (iPhone; CPU iPhone OS 18_2_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22C161 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone16,2;FBMD/iPhone;FBSN/iOS;FBSV/18.2.1;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1] iOS 18 iPhone 15 Pro Max