Latest user agents (if you are looking for complete list, download it here):

• UCWEB/2.0 (Linux; U; Opera Mini/7.1.32052/30.3697; en-US; Aqua_Sx) U2/1.0.0 UCBrowser/9.0.1.379 Mobile
• UCWEB/2.0(Linux; U; Opera Mini/7.1.32052/30.3697; ar-SA; LT_9701 Build/SP1A.210812.016) U2/1.0.0 UCBrowser/13.6.0.1315 Mobile
• UCWEB/2.0 (Linux; U; Android 4.4.4; zh-CN; HM NOTE 1LTETD) U2/1.0.0 UCBrowser/9.9.5.489 U2/1.0.0
• UCWEB/2.0 (Linux; U; Android 4.4.4; zh-CN; HM NOTE 1LTETD) U2/1.0.0 UCBrowser/9.9.5.489 U2/1.0.0 Mobile
• Opera/9.80 (Android; Opera Mini/7.28879/27.1662; U; en-us) Presto/2.8 Version/11.10 UCBrowser/8.6/145/33482
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.1.2; en-US; GT-S7262) U2/1.0.0 UCBrowser/10.1.2.571 U2/1.0.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.1.2; en-US; GT-S7262) U2/1.0.0 UCBrowser/10.1.2.571 U2/1.0.0 Mobile
• UCWEB/2.0(Linux; U; Opera Mini/7.1.32052/30.3697; en-US; CPH1911 Build/RP1A.200720.011) U2/1.0.0 UCBrowser/13.4.2.1307
• UCWEB/2.0 (Windows; U; wds 8.0; vi; NOKIA; RM-998apacvietnam915) U2/1.0.0 UCBrowser/4.2.1.541 U2/1.0.0
• UCWEB/2.0 (Windows; U; wds 8.0; ru-RU; NOKIA; RM-821_eu_russia_216) U2/1.0.0 UCBrowser/4.2.1.541 U2/1.0.0
• UCWEB/2.0(BlackBerry; U; 5.2.0.96; en-us; 8900/5.2.0.96) U2/1.0.0 UCBrowser/8.1.0.216 U2/1.0.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.2; en-US; Q600s) U2/1.0.0 UCBrowser/9.5.0.480 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; zh-CN; ALE-L21) U2/1.0.0 UCBrowser/3.4.3.532 U2/1.0.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.1.1; en-US; C1505) U2/1.0.0 UCBrowser/9.3.0.440 U2/1.0.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.1.2; en-US; GT-P3100) U2/1.0.0 UCBrowser/9.7.0.520 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 5.1; en-US; Micromax_Q465) U2/1.0.0 UCBrowser/10.7.8.806 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 2.3.6; en-US; iris_349plus) U2/1.0.0 UCBrowser/10.7.9.891 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 2.2.2; en-US; LG-P350) U2/1.0.0 UCBrowser/10.2.0.584 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.2; en-US; Lenovo_A5000) U2/1.0.0 UCBrowser/10.1.5.583 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.4; en-US; E2115) U2/1.0.0 UCBrowser/9.6.0.514 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 5.1.1; id; SM-J105F) U2/1.0.0 UCBrowser/10.7.6.805 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.2; www.movistar.co; HUAWEI_Y520-U03) U2/1.0.0 UCBrowser/9.8.0.534 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 6.0; en-US; Cloud_Fame_4G) U2/1.0.0 UCBrowser/10.9.0.946 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 6.0; en-US; Admire_Swadesh) U2/1.0.0 UCBrowser/10.7.9.856 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4; id; SM-G900T) U2/1.0.0 UCBrowser/9.2.0.419 U2/1.0.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.4; en-US; Z970) U2/1.0.0 UCBrowser/10.1.2.571 U2/1.0.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.2.2; en-US; Xtreme_V25) U2/1.0.0 UCBrowser/9.7.0.520 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.2.2; en-US; Panasonic_T31) U2/1.0.0 UCBrowser/10.0.0.556 U2/1.0.0 Mobile
• UCWEB/2.0 (Linux; U; Adr 4.1.2; en-GB; SHV-E160S) U2/1.0.0 UCBrowser/8.6.0.276 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 5.1; en-US; Sparkle_V) U2/1.0.0 UCBrowser/10.1.2.571 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.0.4; en-US; GT-S7560M) U2/1.0.0 UCBrowser/9.4.0.460 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 5.1; en-US; D201) U2/1.0.0 UCBrowser/9.7.0.520 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.2.2; en-US; Aqua_I-4) U2/1.0.0 UCBrowser/8.8.1.351 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.0.4; en-US; Karbonn_A2+) U2/1.0.0 UCBrowser/10.7.8.806 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 5.0.2; en-US; ASUS_Z010D) U2/1.0.0 UCBrowser/10.7.6.805 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.0.3; en-US; SKING) U2/1.0.0 UCBrowser/10.4.2.659 U2/1.0.0 Mobile
• UCWEB/2.0 (Linux; U; Adr 4.2.2; en-US; Symphony_W82) U2/1.0.0 UCBrowser/8.7.0.315 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.2; en-US; Micromax_A311) U2/1.0.0 UCBrowser/10.6.0.706 U2/1.0.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 2.2; en-US; HTC_Desire) U2/1.0.0 UCBrowser/9.7.0.520 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.2; en-US; SM-G313H) U2/1.0.0 UCBrowser/10.1.4.573 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.3; en-US; Z10) U2/1.0.0 UCBrowser/9.8.0.534 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.2; pt-BR; STUDIO_5.0K) U2/1.0.0 UCBrowser/10.7.2.757 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 5.1; gamex.ph; Flare_S4) U2/1.0.0 UCBrowser/9.8.0.534 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.0.3; en-US; C21) U2/1.0.0 UCBrowser/10.7.0.733 U2/1.0.0 Mobile
• UCWEB/2.0 (Windows; U; wds 8.0; en-US; NOKIA; RM-914eurussia229) U2/1.0.0 UCBrowser/3.4.1.407 U2/1.0.0
• UCWEB/2.0 (Windows; U; wds 8.10; id; NOKIA; RM-914_apac_australia_new_zealand_1000) U2/1.0.0 UCBrowser/4.2.1.541 U2/1.0.0
• UCWEB/2.0 (Windows; U; wds 8.0; en-US; NOKIA; RM-914apacaustralianewzealand294) U2/1.0.0 UCBrowser/3.6.1.456 U2/1.0.0
• UCWEB/2.0 (Windows; U; wds 8.0; en-US; NOKIA; RM-846apacthailand210) U2/1.0.0 UCBrowser/3.6.1.456 U2/1.0.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 2.3.6; ru; GT-I8160) U2/1.0.0 UCBrowser/10.7.6.805 U2/1.0.0
• UCWEB/2.0(Linux; U; Opera Mini/7.1.32052/30.3697; en-US; Titanium S15 Build/KOT49H) U2/1.0.0 UCBrowser/10.5.0.575
• UCWEB/2.0(Linux; U; Opera Mini/7.1.32052/30.3697; en-US; Titanium S15 Build/KOT49H) U2/1.0.0 UCBrowser/10.5.0.575 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 2.3.6; en-US; Micromax_A72) U2/1.0.0 UCBrowser/9.0.2.389 U2/1.0.0 Mobile
• UCWEB/2.0(Linux; U; Opera Mini/7.1.32052/30.3697; en-US; 23053RN02A Build/TP1A.220624.014) U2/1.0.0 UCBrowser/13.5.8.1314 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.2.2; en-US; ALCATEL_one_touch_J320) U2/1.0.0 UCBrowser/9.2.0.419 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 5.1; en-US; Infinix_8076D) U2/1.0.0 UCBrowser/9.7.0.520 U2/1.0.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 5.1; en-US; Infinix_8076D) U2/1.0.0 UCBrowser/9.7.0.520 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 2.3.5; en-US; HTC_Explorer_A310e) U2/1.0.0 UCBrowser/10.1.2.571 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.1.2; en-US; GT-I8190) U2/1.0.0 UCBrowser/10.7.5.785 U2/1.0.0 Mobile
• UCWEB/2.0(Symbian; U; S60 V5; en-US; Nokia5233) U2/1.0.0 UCBrowser/8.8.1.252 U2/1.0.0 Mobile
• UCWEB/2.0 (Linux; U; Opera Mini/7.1.32052/30.3697; en-US; GT-S5830) U2/1.0.0 UCBrowser/9.3.0.440 Mobile
• UCWEB/2.0(Linux; U; Opera Mini/7.1.32052/30.3697; ar-SA; HRY-LX1MEB Build/HONORHRY-LX1MEB) U2/1.0.0 UCBrowser/13.4.5.1308 Mobile
• UCWEB/2.0(Linux; U; Opera Mini/7.1.32052/30.3697; en-US; GT-S7270 Build/JDQ39) U2/1.0.0 UCBrowser/10.5.0.575 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.4; id; GT-I9060I) U2/1.0.0 UCBrowser/10.9.0.946 U2/1.0.0 Mobile
• UCWEB/2.0 (Java; U; MIDP-2.0; id; Nokia 6233) U2/1.0.0 UCBrowser/9.4.1.377 U2/1.0.0 Mobile [FBLC/id_ID;FBAV/359.0.0.11.81;]
• UCWEB/2.0(Linux; U; Opera Mini/7.1.32052/30.3697; en-US; CPH1911 Build/RP1A.200720.011) U2/1.0.0 UCBrowser/13.4.2.1307 Mobile
• UCWEB/2.0 (Windows; U; wds 8.0; vi; NOKIA; RM-998apacvietnam915) U2/1.0.0 UCBrowser/4.2.1.541 U2/1.0.0 Mobile
• UCWEB/2.0 (Windows; U; wds 8.0; ru-RU; NOKIA; RM-821_eu_russia_216) U2/1.0.0 UCBrowser/4.2.1.541 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; zh-CN; ALE-L21) U2/1.0.0 UCBrowser/3.4.3.532 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.2; en-US; GT-I9301I) U2/1.0.0 UCBrowser/10.7.9.856 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4; id; SM-G900T) U2/1.0.0 UCBrowser/9.2.0.419 U2/1.0.0 Mobile
• UCWEB/2.0 (Linux; U; Opera Mini/7.1.32052/30.3697; en-US; Lenovo A806 Build/KOT49H) U2/1.0.0 UCMini/10.9.0.946 (SpeedMode; Android 4.4.2; Lenovo A806 Build/KOT49H) Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.2; id; S4J) U2/1.0.0 UCBrowser/9.7.0.520 U2/1.0.0 Mobile
• UCWEB/2.0 (Windows; U; wds 8.0; en-US; NOKIA; RM-914eurussia229) U2/1.0.0 UCBrowser/3.4.1.407 U2/1.0.0 Mobile
• UCWEB/2.0 (Windows; U; wds 8.10; id; NOKIA; RM-914_apac_australia_new_zealand_1000) U2/1.0.0 UCBrowser/4.2.1.541 U2/1.0.0 Mobile
• UCWEB/2.0 (Windows; U; wds 8.0; en-US; NOKIA; RM-914apacaustralianewzealand294) U2/1.0.0 UCBrowser/3.6.1.456 U2/1.0.0 Mobile
• UCWEB/2.0 (Windows; U; wds 8.0; en-US; NOKIA; RM-846apacthailand210) U2/1.0.0 UCBrowser/3.6.1.456 U2/1.0.0 Mobile
• Nokia5130c-2/2.0 (07.97) Profile/MIDP-2.1 Configuration/CLDC-1.1 UCWEB/2.0 (Java; U; MIDP-2.0; en-US; Nokia5130c-2) U2/1.0.0 UCBrowser/9.5.0.449 U2/1.0.0 Mobile UNTRUSTED/1.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 10; en-US; YAL-L21) U2/1.0.0 UCBrowser/9.9.1.554 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.3; en-US; 2014011) U2/1.0.0 UCBrowser/9.7.0.520 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 11; id; RMX2101) U2/1.0.0 UCBrowser/11.1.3.1128 U2/1.0.0 Mobile
• NokiaC1-01/2.0 (05.45) Profile/MIDP-2.1 Configuration/CLDC-1.1 UCWEB/2.0 (Java; U; MIDP-2.0; en-US; NokiaC1-01) U2/1.0.0 UCBrowser/9.5.0.449 U2/1.0.0 Mobile UNTRUSTED/1.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 5.1.1; id; SM-J200G) U2/1.0.0 UCBrowser/10.9.8.1006 U2/1.0.0 Mobile
• UCWEB/2.0 (Java; U; MIDP-2.0; fr-FR; Nokia6280) U2/1.0.0 UCBrowser/9.3.0.326 U2/1.0.0 Mobile UNTRUSTED/1.0
• UCWEB/2.0 (Linux; U; Opera Mini/7.1.32052/30.3697; en-US; TECNO-Y3+) U2/1.0.0 UCBrowser/10.1.2.571 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 6.0; en-US; U50) U2/1.0.0 UCBrowser/9.5.1.494 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 4.4.2; en-US; Tecno_T308) U2/1.0.0 UCBrowser/9.7.0.520 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 8.1.0; en-US; Redmi_Go) U2/1.0.0 UCBrowser/10.7.8.806 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 7.0; en-US; Tecno_A88) U2/1.0.0 UCBrowser/9.7.0.520 U2/1.0.0 Mobile
• UCWEB/2.0 (Java; U; MIDP-2.0; ru-RU; NokiaC5-00.2) U2/1.0.0 UCBrowser/9.5.0.449 U2/1.0.0 Mobile UNTRUSTED/1.0 3gpp-gba
• Nokia210.5/2.0 (06.09) Profile/MIDP-2.1 Configuration/CLDC-1.1 UCWEB/2.0 (Java; U; MIDP-2.0; es-LA; Nokia210.5) U2/1.0.0 UCBrowser/9.5.0.449 U2/1.0.0 Mobile UNTRUSTED/1.0
• UCWEB/2.0 (Linux; U; Adr 4.0.4; en-GB; GT-S6012) U2/1.0.0 UCBrowser/8.6.0.276 U2/1.0.0 Mobile
• UCWEB/2.0 (Java; U; MIDP-2.0; en-US; Nokia216) U2/1.0.0 UCBrowser/9.4.1.377 U2/1.0.0 Mobile UNTRUSTED/1.0
• UCWEB/2.0 (Java; U; MIDP-2.0; en-US; SAMSUNG-SM-B313E) U2/1.0.0 UCBrowser/9.4.0.342 U2/1.0.0 Mobile UNTRUSTED/1.0
• UCWEB/2.0 (Java; U; MIDP-2.0; en-US; SonyEricssonW595s) U2/1.0.0 UCBrowser/9.5.0.449 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 2.3.6; id; GT-S6500D) U2/1.0.0 UCBrowser/9.8.0.534 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 6.1; en-US; Wiko_W86) U2/1.0.0 UCBrowser/9.7.0.520 U2/1.0.0 Mobile
• UCWEB/2.0 (MIDP-2.0; U; Adr 5.1; en-US; 0PM92) U2/1.0.0 UCBrowser/9.5.1.494 U2/1.0.0 Mobile
• UCWEB/2.0 (Java; U; MIDP-2.0; fr-FR; Panama-orange) U2/1.0.0 UCBrowser/9.4.0.342 U2/1.0.0 Mobile UNTRUSTED/1.0
• UCWEB/2.0 (MIDP-2.0; U; Adr 11; en-US; ASUS_X00PD) U2/1.0.0 UCBrowser/11.5.2.1188 U2/1.0.0 Mobile
• UCWEB/2.0 (Java; U; MIDP-2.0; en-US; MAUI) U2/1.0.0 UCBrowser/9.5.0.449 U2/1.0.0 Mobile