Latest Facebook 506 user agents:

User Agent Platform Device
Mozilla/5.0 (iPad; CPU OS 17_7_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/21H216 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPad7,12;FBMD/iPad;FBSN/iPadOS;FBSV/17.7.1;FBSS/2;FBID/tablet;FBLC/en_US;FBOP/5;FBRV/717677729] iPadOS 17 iPad 7 10.2
Mozilla/5.0 (iPad; CPU OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/506.0.0.50.87;FBBV/712969325;FBDV/iPad13,19;FBMD/iPad;FBSN/iPadOS;FBSV/26.5;FBSS/2;FBID/tablet;FBLC/en_US;FBOP/5;FBRV/0] iPadOS 26 iPad 10 10.9"
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/717677729;IABMV/1] iOS 26 iPhone 14
Mozilla/5.0 (Linux; Android 8.1.0; vivo 1820 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.141 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/506.1.0.74.27;] Android 8 Y91i
Mozilla/5.0 (iPhone; CPU iPhone OS 17_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/21F90 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/17.5.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/717677729;IABMV/1] iOS 17 iPhone 14
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone16,2;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/717677729;IABMV/1];FBNV/1 iOS 26 iPhone 15 Pro Max
Mozilla/5.0 (iPhone; CPU iPhone OS 26_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23A341 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone14,7;FBMD/iPhone;FBSN/iOS;FBSV/26.0;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/717677729;IABMV/1] iOS 26 iPhone 14
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/506.0.0.50.87;FBBV/712969325;FBDV/iPhone17,5;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/0;IABMV/1] iOS 26 iPhone 16e
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone17,3;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/717677729;IABMV/1] iOS 26 iPhone 16
Mozilla/5.0 (iPhone; CPU iPhone OS 16_7_10 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20H350 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone10,5;FBMD/iPhone;FBSN/iOS;FBSV/16.7.10;FBSS/3;FBID/phone;FBLC/tr_TR;FBOP/5;FBRV/717677729;IABMV/1] iOS 16 iPhone 8 Plus
Mozilla/5.0 (iPhone; CPU iPhone OS 16_7_10 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/20H350 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone10,5;FBMD/iPhone;FBSN/iOS;FBSV/16.7.10;FBSS/3;FBID/phone;FBLC/tr_TR;FBOP/5;FBRV/717677729;IABMV/1] iOS 16 iPhone 8 Plus
Mozilla/5.0 (Linux; Android 11; SM-A205F Build/RP1A.200720.012; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.170 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/506.1.0.74.27;IABMV/1;] FBNV/5 Android 11 Galaxy A20
Mozilla/5.0 (iPad; CPU OS 26_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23C55 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPad14,1;FBMD/iPad;FBSN/iPadOS;FBSV/26.2;FBSS/2;FBID/tablet;FBLC/en_US;FBOP/5;FBRV/717677729] iPadOS 26 iPad Mini 6 WiFi
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/506.0.0.50.87;FBBV/712969325;FBDV/iPhone14,5;FBMD/iPhone;FBSN/iOS;FBSV/18.3.2;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/0;IABMV/1] iOS 18 iPhone 13
Mozilla/5.0 (iPhone; CPU iPhone OS 18_2_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22C161 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone17,3;FBMD/iPhone;FBSN/iOS;FBSV/18.2.1;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/717677729;IABMV/1] iOS 18 iPhone 16
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone15,2;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/en_US;FBOP/5;FBRV/717677729;IABMV/1] iOS 26 iPhone 14 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 18_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22E240 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone14,6;FBMD/iPhone;FBSN/iOS;FBSV/18.4;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/717677729;IABMV/1] iOS 18 iPhone SE (2022)
Mozilla/5.0 (iPhone; CPU iPhone OS 18_7_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/22H31 [FBAN/FBIOS;FBAV/506.0.0.50.87;FBBV/712969325;FBDV/iPhone12,8;FBMD/iPhone;FBSN/iOS;FBSV/18.7.1;FBSS/2;FBID/phone;FBLC/en_US;FBOP/5;FBRV/0;IABMV/1] iOS 18 iPhone SE (2020)
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone14,2;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/3;FBID/phone;FBLC/fr_FR;FBOP/5;FBRV/717677729;IABMV/1] iOS 26 iPhone 13 Pro
Mozilla/5.0 (iPhone; CPU iPhone OS 26_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/23F77 [FBAN/FBIOS;FBAV/506.1.0.77.87;FBBV/714726354;FBDV/iPhone14,6;FBMD/iPhone;FBSN/iOS;FBSV/26.5;FBSS/2;FBID/phone;FBLC/en_GB;FBOP/5;FBRV/717677729;IABMV/1] iOS 26 iPhone SE (2022)