Latest Facebook 518 user agents:

User Agent Platform Device
Mozilla/5.0 (iPad; CPU OS 26_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23D127 [FBAN/FBIOS;FBAV/518.0.0.52.100;FBBV/750192798;FBDV/iPad11,6;FBMD/iPad;FBSN/iPadOS;FBSV/26.3;FBSS/2;FBID/tablet;FBLC/it_IT;FBOP/5;FBRV/754560942] iPadOS 26 iPad 8 10.2"
Mozilla/5.0 (Linux; Android 13; 6165H 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/518.0.0.63.86;IABMV/1;] Android 13 30 SE
Mozilla/5.0 (Linux; Android 11; CPH2269 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/518.0.0.63.86;IABMV/1;] Android 11 A16
Mozilla/5.0 (Linux; Android 10; SM-A205F; Build/QP1A.190711.020; ) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.135 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/518.0.0.63.86;] Android 10 Galaxy A20
Mozilla/5.0 (Linux; Android 11; moto g pure Build/RRHS31.Q3-46-110-13; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/138.0.7204.168 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/518.0.0.63.86;IABMV/1;] Android 11 Moto G Pure
Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22F76 [FBAN/FBIOS;FBAV/518.0.0.52.100;FBBV/750192798;FBDV/iPhone15,5;FBMD/iPhone;FBSN/iOS;FBSV/18.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/754560942;IABMV/1] iOS 18 iPhone 15 Plus
Mozilla/5.0 (iPhone; CPU iPhone OS 16_7_14 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20H370 [FBAN/FBIOS;FBAV/518.0.0.52.100;FBBV/750192798;FBDV/iPhone10,1;FBMD/iPhone;FBSN/iOS;FBSV/16.7.14;FBSS/2;FBID/phone;FBLC/it_IT;FBOP/5;FBRV/754560942;IABMV/1] iOS 16 iPhone 8
Mozilla/5.0 (Linux; Android 13; CPH2333 Build/TP1A.220905.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/145.0.7632.159 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/518.0.0.63.86;IABMV/1;] Android 13 A96
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/518.0.0.52.100;FBBV/750192798;FBDV/iPhone11,8;FBMD/iPhone;FBSN/iOS;FBSV/18.3.2;FBSS/2;FBID/phone;FBLC/fr_FR;FBOP/5;FBRV/754560942;IABMV/1] iOS 18 iPhone XR
Mozilla/5.0 (iPad; CPU OS 18_7_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22H217 [FBAN/FBIOS;FBAV/518.0.0.52.100;FBBV/750192798;FBDV/iPad12,2;FBMD/iPad;FBSN/iPadOS;FBSV/18.7.3;FBSS/2;FBID/tablet;FBLC/en_US;FBOP/5;FBRV/754560942] iPadOS 18 iPad 9 10.2"
Mozilla/5.0 (Linux; Android 12; SM-S515DL 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/518.0.0.63.86;IABMV/1;] Android 12 Galaxy A51
Mozilla/5.0 (Linux; Android 13; SM-A136U1 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/518.0.0.63.86;IABMV/1;] Android 13 Galaxy A13 5G
Mozilla/5.0 (Linux; Android 9; ZT216_1 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/137.0.7151.112 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/518.0.0.63.86;IABMV/1;] FBNV/5 Android 9 ZT216
Mozilla/5.0 (Linux; Android 9; ZT216_1 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/137.0.7151.112 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/518.0.0.63.86;IABMV/1;] Android 9 ZT216
Mozilla/5.0 (Linux; Android 9; X19 S Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/137.0.7151.112 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/518.0.0.63.86;IABMV/1;] Android 9 X19 S
Mozilla/5.0 (Linux; Android 9; VIA_G4 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/137.0.7151.112 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/518.0.0.63.86;IABMV/1;] FBNV/5 Android 9 VIA G4
Mozilla/5.0 (Linux; Android 9; VIA_G4 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/137.0.7151.112 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/518.0.0.63.86;IABMV/1;] Android 9 VIA G4
Mozilla/5.0 (Linux; Android 9; U693CL Build/U693CL_01.02.05; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/137.0.7151.115 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/518.0.0.63.86;IABMV/1;] Android 9 UMX U693CL
Mozilla/5.0 (Linux; Android 9; Trekker-X4 Build/PKQ1.190414.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/137.0.7151.112 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/518.0.0.66.86;IABMV/1;] 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/137.0.7151.112 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/518.0.0.63.86;IABMV/1;] Android 9 Trekker-X4