Latest Facebook 551 user agents:

User Agent Platform Device
Mozilla/5.0 (iPhone; CPU iPhone OS 15_8_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/19H411 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone8,2;FBMD/iPhone;FBSN/iOS;FBSV/15.8.7;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/906413714;IABMV/1] iOS 15 iPhone 6s Plus
Mozilla/5.0 (iPhone; CPU iPhone OS 26_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23E254 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone18,1;FBMD/iPhone;FBSN/iOS;FBSV/26.4.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906493495;IABMV/1] iOS 26 iPhone 17 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 15_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/19G71 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/15.6;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1];FBNV/1 iOS 15 iPhone 11
Mozilla/5.0 (iPhone; CPU iPhone OS 15_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/19G71 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/15.6;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 15 iPhone 11
Mozilla/5.0 (iPhone; CPU iPhone OS 26_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23E254 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone14,2;FBMD/iPhone;FBSN/iOS;FBSV/26.4.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 13 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 18_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22E240 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/18.4;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/906413714;IABMV/1] iOS 18 iPhone 11
Mozilla/5.0 (iPhone; CPU iPhone OS 26_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23C55 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone15,4;FBMD/iPhone;FBSN/iOS;FBSV/26.2;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1];FBNV/1 iOS 26 iPhone 15
Mozilla/5.0 (iPhone; CPU iPhone OS 26_0_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23A355 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone14,3;FBMD/iPhone;FBSN/iOS;FBSV/26.0.1;FBSS/3;FBID/phone;FBLC/vi_VN;FBOP/5;FBRV/906413714;IABMV/1] iOS 26 iPhone 13 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 26_2_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23C71 Safari/604.1 [FBAN/FBIOS;FBAV/551.0.0.39.67;FBBV/897790831;FBDV/iPhone12,5;FBMD/iPhone;FBSN/iOS;FBSV/26.2.1;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/0;IABMV/1] iOS 26 iPhone 11 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 16_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20G81 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/16.6.1;FBSS/2;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/906413714;IABMV/1];FBNV/1 iOS 16 iPhone 11
Mozilla/5.0 (iPhone; CPU iPhone OS 16_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20G81 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/16.6.1;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_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20G81 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/16.6.1;FBSS/2;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/906413714;IABMV/1];FBNV/1 iOS 16 iPhone 11
Mozilla/5.0 (iPhone; CPU iPhone OS 16_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20G81 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone12,1;FBMD/iPhone;FBSN/iOS;FBSV/16.6.1;FBSS/2;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/906413714;IABMV/1] iOS 16 iPhone 11
Mozilla/5.0 (iPhone; CPU iPhone OS 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/iPhone9,3;FBMD/iPhone;FBSN/iOS;FBSV/15.8.6;FBSS/2;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906493495;IABMV/1] iOS 15 iPhone 7
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/551.0.0.39.67;FBBV/897790831;FBDV/iPhone15,4;FBMD/iPhone;FBSN/iOS;FBSV/18.5;FBSS/3;FBID/phone;FBLC/hr_HR;FBOP/5;FBRV/0;IABMV/1] iOS 18 iPhone 15
Mozilla/5.0 (iPhone; CPU iPhone OS 26_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23E254 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone17,4;FBMD/iPhone;FBSN/iOS;FBSV/26.4.1;FBSS/3;FBID/phone;FBLC/es_LA;FBOP/5;FBRV/906413714;IABMV/1];FBNV/1 iOS 26 iPhone 16 Plus
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/551.0.0.39.67;FBBV/897790831;FBDV/iPhone15,3;FBMD/iPhone;FBSN/iOS;FBSV/18.5;FBSS/3;FBID/phone;FBLC/en_Qaau_GB;FBOP/5;FBRV/0;IABMV/1] iOS 18 iPhone 14 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 16_7_12 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20H364 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone10,3;FBMD/iPhone;FBSN/iOS;FBSV/16.7.12;FBSS/3;FBID/phone;FBLC/en_Qaau_GB;FBOP/5;FBRV/906413714;IABMV/1] iOS 16 iPhone X
Mozilla/5.0 (iPhone; CPU iPhone OS 26_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23E254 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone16,1;FBMD/iPhone;FBSN/iOS;FBSV/26.4.1;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 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22H124 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone11,2;FBMD/iPhone;FBSN/iOS;FBSV/18.7.2;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/906413714;IABMV/1];FBNV/1 iOS 18 iPhone XS