Latest Facebook 551 user agents:

User Agent Platform Device
Mozilla/5.0 (iPhone; CPU iPhone OS 18_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22E252 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone17,2;FBMD/iPhone;FBSN/iOS;FBSV/18.4.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 18 iPhone 16 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 26_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23A341 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone14,8;FBMD/iPhone;FBSN/iOS;FBSV/26.0;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 14 Plus
Mozilla/5.0 (iPhone; CPU iPhone OS 26_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23E246 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone18,2;FBMD/iPhone;FBSN/iOS;FBSV/26.4;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 17 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F5043g Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone17,2;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 16 Pro Max
Mozilla/5.0 (iPad; CPU OS 26_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D127 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPad13,18;FBMD/iPad;FBSN/iPadOS;FBSV/26.3;FBSS/2;FBID/tablet;FBLC/en_GB;FBOP/5;FBRV/906413714;IABMV/1] iPadOS 26 iPad 10 10.9" WiFi
Mozilla/5.0 (iPhone; CPU iPhone OS 26_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D127 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone14,5;FBMD/iPhone;FBSN/iOS;FBSV/26.3;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 13
Mozilla/5.0 (iPhone; CPU iPhone OS 26_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D8133 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone17,5;FBMD/iPhone;FBSN/iOS;FBSV/26.3.1;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/906413714;IABMV/1];FBNV/1 iOS 26 iPhone 16e
Mozilla/5.0 (iPhone; CPU iPhone OS 18_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22C152 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/18.2;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_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D8133 Safari/604.1 [FBAN/FBIOS;FBAV/551.0.0.39.67;FBBV/897790831;FBDV/iPhone18,4;FBMD/iPhone;FBSN/iOS;FBSV/26.3.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/0;IABMV/1] iOS 26 iPhone Air
Mozilla/5.0 (iPhone; CPU iPhone OS 17_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/21E236 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/17.4.1;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1] iOS 17 iPhone 14
Mozilla/5.0 (iPad; CPU OS 15_8_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/19H402 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPad5,4;FBMD/iPad;FBSN/iPadOS;FBSV/15.8.6;FBSS/2;FBID/tablet;FBLC/it_IT;FBOP/5;FBRV/906493495;IABMV/1];FBNV/1 iPadOS 15 iPad Air 2
Mozilla/5.0 (iPhone; CPU iPhone OS 17_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/21D61 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone15,3;FBMD/iPhone;FBSN/iOS;FBSV/17.3.1;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/906413714;IABMV/1] iOS 17 iPhone 14 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 26_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D8133 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone13,2;FBMD/iPhone;FBSN/iOS;FBSV/26.3.1;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1];FBNV/1 iOS 26 iPhone 12
Mozilla/5.0 (iPhone; CPU iPhone OS 26_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23E246 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone16,1;FBMD/iPhone;FBSN/iOS;FBSV/26.4;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 15 Pro
Mozilla/5.0 (iPad; CPU OS 16_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20D67 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPad11,6;FBMD/iPad;FBSN/iPadOS;FBSV/16.3.1;FBSS/2;FBID/tablet;FBLC/en_GB;FBOP/5;FBRV/906413714;IABMV/1] iPadOS 16 iPad 8 10.2"
Mozilla/5.0 (iPhone; CPU iPhone OS 18_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22E252 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone15,3;FBMD/iPhone;FBSN/iOS;FBSV/18.4.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 18 iPhone 14 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22F76 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone14,2;FBMD/iPhone;FBSN/iOS;FBSV/18.5;FBSS/3;FBID/phone;FBLC/de_DE;FBOP/5;FBRV/906413714;IABMV/1] iOS 18 iPhone 13 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 16_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20E252 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/16.4.1;FBSS/2;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/906413714;IABMV/1] iOS 16 iPhone 11
Mozilla/5.0 (iPhone; CPU iPhone OS 16_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20F66 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone13,3;FBMD/iPhone;FBSN/iOS;FBSV/16.5;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1];FBNV/1 iOS 16 iPhone 12 Pro
Mozilla/5.0 (Linux; Android 9; SM-S205DL Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/138.0.7204.179 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] Android 9 Galaxy A20