These entries are queried from radb.net using whois, you can try my project getting these.
:AS398998 route: 23.147.104.0/24 origin: AS398998 descr: Maverix Broadband Inc noc [at] maverixbroadband.com admin-c: MBN13-ARIN tech-c: MBN13-ARIN mnt-by: MNT-MB-671 created: 2023-02-07T23:04:16Z last-modified: 2023-02-07T23:04:16Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.81.169.0/24 origin: AS398998 admin-c: MAVER3-ARIN tech-c: MAVER3-ARIN mnt-by: MNT-ML-1400 created: 2020-12-05T03:20:29Z last-modified: 2020-12-05T03:20:29Z source: ARIN descr: MNT-ML-1400 route 074.081.169.000/24 AS398998 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:470:258::/48 origin: AS398998 descr: NET-2001-470-258---48-AS398998 admin-c: ZH17-ARIN tech-c: ZH17-ARIN mnt-by: MNT-HURC source: ARIN created: 2023-12-20T02:45:14Z last-modified: 2023-12-20T02:45:14Z rpki-ov-state: valid route6: 2602:2a1::/36 origin: AS398998 descr: Maverix Broadband Inc via MX noc [at] maverixbroadband.com admin-c: MBN13-ARIN tech-c: MBN13-ARIN mnt-by: MNT-MB-671 created: 2023-02-04T16:21:56Z last-modified: 2023-02-04T16:21:56Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:fcf1::/36 origin: AS398998 admin-c: MAVER3-ARIN tech-c: MAVER3-ARIN mnt-by: MNT-ML-1400 created: 2020-12-18T23:02:43Z last-modified: 2020-12-18T23:02:43Z source: ARIN descr: MNT-ML-1400 route 2602:FCF1:0000:0000:0000:0000:0000:0000/36 AS398998 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source