These entries are queried from radb.net using whois, you can try my project getting these.
:AS135981 route: 103.168.52.0/23 origin: AS135981 descr: KH Visual Viet mnt-by: MAINT-AS45903 changed: minh.nc [at] cmctelecom.vn 20210702 #13:26:54Z source: RADB last-modified: 2023-11-13T16:07:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.168.52.0/24 descr: ONEPLUS-VN origin: AS135981 mnt-by: MAINT-VN-VNNIC last-modified: 2022-07-07T03:32:23Z source: APNIC rpki-ov-state: valid route: 103.168.52.0/24 origin: AS135981 descr: KH VisualViet mnt-by: MAINT-AS45903 changed: duy.np [at] cmctelecom.vn 20220627 #09:45:35Z source: RADB last-modified: 2023-11-13T16:11:41Z rpki-ov-state: valid route: 157.20.58.0/23 descr: Proxy-registered route object origin: AS135981 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20240306 source: RADB last-modified: 2024-03-06T07:19:11Z rpki-ov-state: valid route: 157.20.58.0/23 descr: DESIGN5N5-VN origin: AS135981 mnt-by: MAINT-VN-VNNIC last-modified: 2024-02-29T09:25:34Z source: APNIC rpki-ov-state: valid route: 157.20.58.0/23 descr: Proxy-registered route object origin: AS135981 remarks: This is a HGC customer route-object remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found. remarks: remarks: Please contact radb [at] hutchcity.com if you have any remarks: questions regarding this object. notify: radb [at] hutchcity.com mnt-by: MAINT-AS9304 changed: radb [at] hutchcity.com 20240306 source: NTTCOM last-modified: 2024-03-06T07:19:11Z rpki-ov-state: valid route6: 2400:3220::/48 origin: AS135981 descr: Customer VisualViet mnt-by: MAINT-AS45903 changed: duy.np [at] cmctelecom.vn 20220829 #04:51:32Z source: RADB last-modified: 2023-11-13T16:12:25Z rpki-ov-state: valid route6: 2400:3220::/48 descr: HMCGROUP-VN origin: AS135981 mnt-by: MAINT-VN-VNNIC last-modified: 2022-08-30T01:31:55Z source: APNIC rpki-ov-state: valid route6: 2405:1a40::/48 descr: VISUALVIET-VN origin: AS135981 mnt-by: MAINT-VN-VNNIC last-modified: 2020-09-25T10:10:37Z source: APNIC rpki-ov-state: valid route6: 2407:8440::/32 origin: AS135981 descr: KH Visual Viet mnt-by: MAINT-AS45903 changed: minh.nc [at] cmctelecom.vn 20210706 #12:50:51Z source: RADB last-modified: 2023-11-13T16:07:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source