Latest Facebook 550 user agents:

User Agent Platform Device
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/550.0.0.34.65;FBBV/890804754;FBDV/iPad11,3;FBMD/iPad;FBSN/iPadOS;FBSV/26.4.2;FBSS/2;FBID/tablet;FBLC/en_US;FBOP/5;FBRV/900736983;IABMV/1] iPadOS 26 iPad Air 3
Mozilla/5.0 (iPad; CPU OS 26_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D8133 Safari/604.1 [FBAN/FBIOS;FBAV/550.0.0.34.65;FBBV/890804754;FBDV/iPad14,3;FBMD/iPad;FBSN/iPadOS;FBSV/26.3.1;FBSS/2;FBID/tablet;FBLC/en_US;FBOP/5;FBRV/900736983;IABMV/1];FBNV/1 iPadOS 26 iPad Pro 4 11" WiFi
Mozilla/5.0 (iPad; CPU OS 26_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D8133 Safari/604.1 [FBAN/FBIOS;FBAV/550.0.0.34.65;FBBV/890804754;FBDV/iPad14,3;FBMD/iPad;FBSN/iPadOS;FBSV/26.3.1;FBSS/2;FBID/tablet;FBLC/en_US;FBOP/5;FBRV/900736983;IABMV/1] iPadOS 26 iPad Pro 4 11" WiFi
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone13,2;FBMD/iPhone;FBSN/iOS;FBSV/26.4.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/900736983;IABMV/1] iOS 26 iPhone 12
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/550.0.0.28.106;FBBV/890844927;FBDV/iPhone13,2;FBMD/iPhone;FBSN/iOS;FBSV/26.4.2;FBSS/3;FBCR/;FBID/phone;FBLC/de_DE;FBOP/80] iOS 18 iPhone 12
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone17,5;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/901087904;IABMV/1] iOS 26 iPhone 16e
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone14,5;FBMD/iPhone;FBSN/iOS;FBSV/18.7.2;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/900736983;IABMV/1] iOS 18 iPhone 13
Mozilla/5.0 (iPad; CPU OS 18_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22D72 Safari/604.1 [FBAN/FBIOS;FBAV/550.0.0.34.65;FBBV/890804754;FBDV/iPad7,11;FBMD/iPad;FBSN/iPadOS;FBSV/18.3.1;FBSS/2;FBID/tablet;FBLC/en_US;FBOP/5;FBRV/900736983;IABMV/1] iPadOS 18 iPad 7 10.2
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone14,3;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/es_LA;FBOP/5;FBRV/900736983;IABMV/1] iOS 26 iPhone 13 Pro Max
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/550.0.0.34.65;FBBV/890804754;FBDV/iPad12,1;FBMD/iPad;FBSN/iPadOS;FBSV/26.4.2;FBSS/2;FBID/tablet;FBLC/de_DE;FBOP/5;FBRV/900736983;IABMV/1] iPadOS 26 iPad 9 10.2" WiFi
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone13,2;FBMD/iPhone;FBSN/iOS;FBSV/26.2;FBSS/3;FBID/phone;FBLC/fr_FR;FBOP/5;FBRV/900736983;IABMV/1] iOS 26 iPhone 12
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone12,5;FBMD/iPhone;FBSN/iOS;FBSV/16.6.1;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/900736983;IABMV/1] iOS 16 iPhone 11 Pro Max
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone17,4;FBMD/iPhone;FBSN/iOS;FBSV/26.3;FBSS/3;FBID/phone;FBLC/es_LA;FBOP/5;FBRV/900736983;IABMV/1];FBNV/1 iOS 26 iPhone 16 Plus
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone17,4;FBMD/iPhone;FBSN/iOS;FBSV/26.3;FBSS/3;FBID/phone;FBLC/es_LA;FBOP/5;FBRV/900736983;IABMV/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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone14,6;FBMD/iPhone;FBSN/iOS;FBSV/18.5;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/900736983;IABMV/1];FBNV/1 iOS 18 iPhone SE (2022)
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/26.2.1;FBSS/3;FBID/phone;FBLC/en_Qaau_US;FBOP/5;FBRV/900736983;IABMV/1];FBNV/1 iOS 26 iPhone 14
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone15,3;FBMD/iPhone;FBSN/iOS;FBSV/18.6.2;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/900736983;IABMV/1];FBNV/1 iOS 18 iPhone 14 Pro Max
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone15,3;FBMD/iPhone;FBSN/iOS;FBSV/18.6.2;FBSS/3;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/901087904;IABMV/1] iOS 18 iPhone 14 Pro Max
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/550.0.0.34.65;FBBV/890804754;FBDV/iPhone16,1;FBMD/iPhone;FBSN/iOS;FBSV/17.3.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/900736983;IABMV/1] iOS 17 iPhone 15 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 15_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/19F77 Safari/604.1 [FBAN/FBIOS;FBAV/550.0.0.34.65;FBBV/890804754;FBDV/iPhone14,6;FBMD/iPhone;FBSN/iOS;FBSV/15.5;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/900736983;IABMV/1];FBNV/1 iOS 15 iPhone SE (2022)