These entries are queried from radb.net using whois, you can try my project getting these.
:AS137876 route: 103.116.50.0/23 descr: CAT route object for Internet Thailand(I-Net) origin: AS137876 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20180730 source: RADB last-modified: 2023-11-13T15:54:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.116.50.0/23 origin: AS137876 descr: Tencent (Thailand) Company Limited 8 T One Building, 10th, 11th and 12th Floor (Unit 3-5), Soi Sukhumvit 40, Sukhumvit Road, Khwaeng Phra Khanong, Khet Khlong Toei, Bangkok 10110 mnt-by: MAINT-TENCENT-TH last-modified: 2023-10-05T08:46:07Z country: TH source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.116.50.0/24 descr: CAT route object for Internet Thailand(I-Net) origin: AS137876 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20180730 source: RADB last-modified: 2023-11-13T15:54:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.116.51.0/24 descr: CAT route object for Internet Thailand(I-Net) origin: AS137876 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20180730 source: RADB last-modified: 2023-11-13T15:54:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df5:4500::/48 origin: AS137876 descr: Tencent (Thailand) Company Limited Muang Thai - Phatra Complex, Tower A, 15-16th Floor, 252/19-20 Rachadapisek Road , Huaykwang mnt-by: MAINT-TENCENT-TH last-modified: 2018-05-30T04:50:48Z country: TH source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df5:4500::/48 descr: CAT route object for Internet Thailand(I-Net) origin: AS137876 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20180730 source: RADB last-modified: 2023-11-13T15:54:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source