Latest Facebook 551 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 14; Note 13 Max Build/UP1A.231005.007; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.157 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] Android 14 Unknown
Mozilla/5.0 (Linux; Android 14; CPH2461 Build/TP1A.220905.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] Android 14 F21s Pro
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/iPad12,1;FBMD/iPad;FBSN/iPadOS;FBSV/26.3;FBSS/2;FBID/tablet;FBLC/fr_FR;FBOP/5;FBRV/0;IABMV/1] iPadOS 26 iPad 9 10.2" WiFi
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/iPhone12,3;FBMD/iPhone;FBSN/iOS;FBSV/18.6.2;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/904204668;IABMV/1] iOS 18 iPhone 11 Pro
Mozilla/5.0 (Linux; Android 15; V2423 Build/AP3A.240905.015.A2_D1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.157 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] FBNV/500 Android 15 Y19s
Mozilla/5.0 (Linux; Android 12; CPH2321 Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.157 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] FBNV/500 Android 12 A53s 5G
Mozilla/5.0 (Linux; Android 11; itel A661L Build/RP1A.201005.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] Android 11 A49
Mozilla/5.0 (Linux; Android 14; SM-A256B Build/UP1A.231005.007; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.122 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] Android 14 Galaxy A25 5G
Mozilla/5.0 (Linux; Android 12; RMX3624 Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.157 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] Android 12 C33
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/551.1.0.46.67;FBBV/899660416;FBDV/iPad8,12;FBMD/iPad;FBSN/iPadOS;FBSV/26.3.1;FBSS/2;FBID/tablet;FBLC/en_US;FBOP/5;FBRV/904204668;IABMV/1] iPadOS 26 iPad Pro 4 12.9"
Mozilla/5.0 (Linux; Android 11; 211033MI Build/RP1A.200720.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] Android 11 C31
Mozilla/5.0 (Linux; Android 13; TECNO CH6i Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.157 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] FBNV/500 Android 13 Camon 19 Neo
Mozilla/5.0 (Linux; Android 14; 24048RN6CG Build/UP1A.231005.007; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.157 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] Android 14 Redmi A3x
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/551.1.0.46.67;FBBV/899660416;FBDV/iPhone17,1;FBMD/iPhone;FBSN/iOS;FBSV/26.2.1;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/904204668;IABMV/1] iOS 26 iPhone 16 Pro
Mozilla/5.0 (Linux; Android 15; V2247 Build/AP3A.240905.015.A2_CS; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.159 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] Android 15 Y36
Mozilla/5.0 (iPad; CPU 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/iPad15,7;FBMD/iPad;FBSN/iPadOS;FBSV/26.2;FBSS/2;FBID/tablet;FBLC/fr_FR;FBOP/5;FBRV/903083234;IABMV/1] iPadOS 26 iPad 11 10.9" WiFi
Mozilla/5.0 (Linux; Android 13; SM-A135F Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] Android 13 Galaxy A13
Mozilla/5.0 (iPad; CPU 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/iPad11,6;FBMD/iPad;FBSN/iPadOS;FBSV/18.6.2;FBSS/2;FBID/tablet;FBLC/fr_FR;FBOP/5;FBRV/904204668;IABMV/1] iPadOS 18 iPad 8 10.2"
Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22H311 Safari/604.1 [FBAN/FBIOS;FBAV/551.1.0.46.67;FBBV/899660416;FBDV/iPhone11,6;FBMD/iPhone;FBSN/iOS;FBSV/18.7.5;FBSS/3;FBID/phone;FBLC/th_Qaau_TH;FBOP/5;FBRV/904204668;IABMV/1] iOS 18 iPhone XS Max
Mozilla/5.0 (Linux; Android 12; SM-A528B Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.157 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/551.1.0.58.63;IABMV/1;] Android 12 Galaxy A52s 5G