These entries are queried from radb.net using whois, you can try my project getting these.
:AS37521 route: 41.204.254.0/24 origin: AS37521 descr: ISN mnt-by: MAINT-AS37613 changed: adelaja [at] dolphintelecom.net 20191017 #04:23:49Z source: RADB last-modified: 2023-11-13T15:58:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.165.124.0/22 descr: ISNL Route object origin: AS37521 mnt-by: Internet-Solutions-NG-MNT changed: *** [at] internetsolutions.net.ng 20191122 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.165.124.0/24 descr: ISN origin: AS37521 mnt-by: MAINT-AS37613 changed: adelaja [at] dolphintelecom.net 20180214 #16:22:20Z source: RADB last-modified: 2023-11-13T15:53:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.165.125.0/24 descr: ISN origin: AS37521 mnt-by: MAINT-AS37613 changed: adelaja [at] dolphintelecom.net 20180214 #16:23:29Z source: RADB last-modified: 2023-11-13T15:53:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.165.126.0/24 descr: ISN origin: AS37521 mnt-by: MAINT-AS37613 changed: adelaja [at] dolphintelecom.net 20180611 #10:46:44Z source: RADB last-modified: 2023-11-13T15:53:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.165.127.0/24 origin: AS37521 descr: ISNL mnt-by: MAINT-AS37613 changed: adelaja [at] dolphintelecom.net 20200102 #06:46:13Z source: RADB last-modified: 2023-11-13T15:59:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.149.125.0/24 origin: AS37521 descr: ISN NOVA mnt-by: Cobranet-MNT changed: *** [at] cobranet.ng 20240109 source: AFRINIC rpki-ov-state: valid route: 197.255.252.0/22 descr: Route for NOVA ISN origin: AS37521 mnt-by: Internet-Solutions-NG-MNT created: 2013-07-18T10:05:30Z last-modified: 2018-09-04T17:42:39Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.255.252.0/22 descr: Route object for ISN(Nova) origin: AS37521 remarks: * RIPE remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois mnt-by: Internet-Solutions-NG-MNT changed: *** [at] isn.ng 20171129 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.255.252.0/24 descr: FOR ISN origin: AS37521 mnt-by: MAINT-AS37613 changed: franklin [at] dolphintelecom.net 20170131 #17:02:10Z source: RADB last-modified: 2023-11-13T15:50:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.255.252.0/24 descr: Route object for ISN(Nova) origin: AS37521 mnt-by: Internet-Solutions-NG-MNT changed: *** [at] isn.ng 20171129 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.255.253.0/24 descr: Route object for ISN(Nova) origin: AS37521 mnt-by: Internet-Solutions-NG-MNT changed: *** [at] isn.ng 20171129 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.255.253.0/24 descr: FOR ISN origin: AS37521 mnt-by: MAINT-AS37613 changed: franklin [at] dolphintelecom.net 20170131 #17:03:12Z source: RADB last-modified: 2023-11-13T15:50:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.255.254.0/24 descr: Route object for ISN(Nova) origin: AS37521 mnt-by: Internet-Solutions-NG-MNT changed: *** [at] isn.ng 20171129 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.255.254.0/24 descr: FOR ISN origin: AS37521 mnt-by: MAINT-AS37613 changed: franklin [at] dolphintelecom.net 20170131 #17:03:53Z source: RADB last-modified: 2023-11-13T15:50:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.255.255.0/24 descr: FOR ISN origin: AS37521 mnt-by: MAINT-AS37613 changed: franklin [at] dolphintelecom.net 20170131 #17:04:48Z source: RADB last-modified: 2023-11-13T15:50:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.255.255.0/24 descr: Route object for ISN(Nova) origin: AS37521 mnt-by: Internet-Solutions-NG-MNT changed: *** [at] isn.ng 20171129 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2c0f:eae0::/32 descr: ISNL Route6 object origin: AS37521 mnt-by: Internet-Solutions-NG-MNT changed: *** [at] internetsolutions.net.ng 20191122 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source