These entries are queried from radb.net using whois, you can try my project getting these.
:AS37623 route: 41.242.136.0/22 descr: MTN origin: AS37623 notify: as2905-notify [at] mtnbusiness.net mnt-by: MAINT-AS2905 changed: pk.marakalla [at] mtn.co.za 20161012 #16:24:28Z source: RADB last-modified: 2023-11-13T15:49:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 41.242.136.0/24 descr: SURFLINE prefix origin: AS37623 mnt-by: MAINT-AS37613 changed: kessie [at] dolphintelecom.net 20170311 #06:48:29Z source: RADB last-modified: 2023-11-13T15:50:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 41.242.137.0/24 descr: SURFLINE prefix origin: AS37623 mnt-by: MAINT-AS37613 changed: kessie [at] dolphintelecom.net 20170311 #06:50:22Z source: RADB last-modified: 2023-11-13T15:50:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 41.242.138.0/23 origin: AS37623 descr: SURFLINE-IPT notify: noc [at] dolphintelecom.net mnt-by: MAINT-AS37613 changed: hethakesa [at] dolphintelecom.net 20210216 #14:46:00Z source: RADB last-modified: 2023-11-13T16:03:38Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 41.242.138.0/24 descr: Proxy-registered route object origin: AS37623 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170620 #14:13:18Z source: RADB last-modified: 2023-11-13T15:51:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 41.242.139.0/24 descr: Proxy-registered route object origin: AS37623 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20170620 #14:13:18Z source: RADB last-modified: 2023-11-13T15:51:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 154.114.252.0/22 origin: AS37623 descr: SURFLINE-IPT notify: noc [at] dolphintelecom.net mnt-by: MAINT-AS37613 changed: hethakesa [at] dolphintelecom.net 20210216 #14:46:53Z source: RADB last-modified: 2023-11-13T16:03:38Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source