Latest Facebook 505 user agents:

User Agent Platform Device
Mozilla/5.0 (iPhone; CPU iPhone OS 26_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23B85 [FBAN/FBIOS;FBAV/505.0.0.49.97;FBBV/710084827;FBDV/iPhone14,2;FBMD/iPhone;FBSN/iOS;FBSV/26.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/715382107;IABMV/1] iOS 26 iPhone 13 Pro
Mozilla/5.0 (Linux; Android 11; RMX2101 Build/RKQ1.201217.002; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/142.0.7444.171 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;] Android 11 C17
Mozilla/5.0 (Linux; Android 12; SM-A037F Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;] Android 12 Galaxy A03s
Mozilla/5.0 (iPhone; CPU iPhone OS 26_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23B85 [FBAN/FBIOS;FBAV/505.0.0.49.97;FBBV/710084827;FBDV/iPhone13,2;FBMD/iPhone;FBSN/iOS;FBSV/26.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/715382107;IABMV/1] iOS 26 iPhone 12
Mozilla/5.0 (iPhone; CPU iPhone OS 26_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D127 [FBAN/FBIOS;FBAV/505.0.0.49.97;FBBV/710084827;FBDV/iPhone12,8;FBMD/iPhone;FBSN/iOS;FBSV/26.3;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/715382107;IABMV/1] iOS 26 iPhone SE (2020)
Mozilla/5.0 (Linux; Android 16; SM-A166U Build/BP2A.250605.031.A3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;] Android 16 Galaxy A16 5G
Mozilla/5.0 (Linux; Android 16; SM-S926U Build/BP2A.250605.031.A3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;] Android 16 Galaxy S24+
Mozilla/5.0 (Linux; Android 9; HLK-L42 Build/HONORHLK-L42; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/88.0.4324.93 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;] Android 9 Honor 9X Pro
Mozilla/5.0 (Linux; Android 15; moto g 5G - 2024 Build/V1UFNS35H.193-20-7; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;] Android 15 Moto G 5G
Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22D82 [FBAN/FBIOS;FBAV/505.0.0.49.97;FBBV/710084827;FBDV/iPhone15,4;FBMD/iPhone;FBSN/iOS;FBSV/18.3.2;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/715382107;IABMV/1] iOS 18 iPhone 15
Mozilla/5.0 (Linux; Android 13; 2201117TY Build/TKQ1.221114.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;] Android 13 Redmi Note 11 4G
Mozilla/5.0 (Linux; Android 9; ZTE Blade A7 2020 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/124.0.6367.113 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;] Android 9 Blade A7 (2020)
Mozilla/5.0 (Linux; Android 9; X20 PRO Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;IABMV/1;] Android 9 X20 Pro
Mozilla/5.0 (Linux; Android 9; W-U300 Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;] FBNV/5 Android 9 Ride
Mozilla/5.0 (Linux; Android 9; W-U300 Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;] Android 9 Ride
Mozilla/5.0 (Linux; Android 9; V1941A Build/PKQ1.190302.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;IABMV/1;] Android 9 U3
Mozilla/5.0 (Linux; Android 9; Trekker-X4 Build/PKQ1.190414.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;] Android 9 Trekker-X4
Mozilla/5.0 (Linux; Android 9; Trekker-X4 Build/PKQ1.190414.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;IABMV/1;] FBNV/500 Android 9 Trekker-X4
Mozilla/5.0 (Linux; Android 9; Trekker-X4 Build/PKQ1.190414.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;IABMV/1;] FBNV/5 Android 9 Trekker-X4
Mozilla/5.0 (Linux; Android 9; Trekker-X4 Build/PKQ1.190414.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/505.0.0.57.45;IABMV/1;] Android 9 Trekker-X4