These entries are queried from radb.net using whois, you can try my project getting these.
:AS327952 route: 23.208.31.0/24 descr: Akamai Technologies origin: AS327952 mnt-by: MNT-AKAMAI source: ARIN changed: ip-admin [at] akamai.com 20200211 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 129.56.0.0/16 descr: Natcom Prefix origin: AS327952 mnt-by: NATCOM-AS327952 created: 2016-03-11T14:27:06Z last-modified: 2018-09-04T18:23:25Z 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: 129.56.1.0/24 origin: AS327952 mnt-by: NATCOM-AS327952 created: 2016-06-29T10:21:30Z last-modified: 2018-09-04T18:28:44Z 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: 129.56.2.0/24 descr: NATCOM Fixed Network origin: AS327952 mnt-by: NATCOM-MNT changed: *** [at] ntel.com.ng 20200804 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 129.56.2.0/24 origin: AS327952 mnt-by: NATCOM-AS327952 created: 2016-06-29T10:19:52Z last-modified: 2018-09-04T18:28:43Z 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: 129.56.3.0/24 descr: NATCOM IT origin: AS327952 mnt-by: NATCOM-MNT changed: *** [at] ntel.com.ng 20200804 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 129.56.128.0/17 descr: NATCOM Mobile APN origin: AS327952 mnt-by: NATCOM-MNT changed: *** [at] ntel.com.ng 20200804 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source