These entries are queried from radb.net using whois, you can try my project getting these.
:AS7500 route: 192.50.44.0/24 descr: Project M in Seoul origin: AS7500 mnt-by: MAINT-AS2500 changed: kato [at] wide.ad.jp 20040324 source: RADB last-modified: 2023-11-13T15:39:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.50.45.0/24 descr: FR-M-ROOT-SERVER origin: AS7500 mnt-by: RENATER-MNT remarks: changed: rensvp [at] renater.fr 20040331 created: 2004-03-31T12:29:27Z last-modified: 2018-09-04T15:41:09Z 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: 192.50.45.0/24 descr: Project M in Paris origin: AS7500 mnt-by: MAINT-AS2500 changed: kato [at] wide.ad.jp 20040324 source: RADB last-modified: 2023-11-13T15:39:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.12.27.0/24 descr: M Root DNS server Tokyo, JAPAN origin: AS7500 notify: kato [at] wide.ad.jp mnt-by: MAINT-AS2500 changed: kato [at] wide.ad.jp 20011001 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.12.27.0/24 descr: M Root DNS server origin: AS7500 mnt-by: RENATER-MNT remarks: changed: rensvp [at] renater.fr 20100823 created: 2010-08-24T09:50:52Z last-modified: 2018-09-04T16:20:03Z 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: 202.12.27.0/24 origin: AS7500 descr: WIDE Murai Lab Keio University 5322 Endo, Fujisawa-shi mnt-by: MAINT-JP-WIDE last-modified: 2017-09-05T00:52:23Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.13.183.0/24 descr: M Root DNS server, Tokyo, JAPAN origin: AS7500 notify: kato [at] wide.ad.jp mnt-by: MAINT-AS2500 changed: kato [at] wide.ad.jp 20020417 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:470:123::/48 origin: AS7500 descr: NET-2001-470-123---48-AS7500 admin-c: ZH17-ARIN tech-c: ZH17-ARIN mnt-by: MNT-HURC source: ARIN created: 2022-01-20T20:21:52Z last-modified: 2022-01-20T20:21:52Z rpki-ov-state: valid route6: 2001:dc3::/32 descr: M-Root DNS Server origin: AS7500 mnt-by: MAINT-AS2500 changed: kato [at] wide.ad.jp 20071016 source: RADB last-modified: 2023-11-13T15:39:53Z rpki-ov-state: valid route6: 2001:dc3::/32 origin: AS7500 descr: WIDE Murai Lab Keio University 5322 Endo, Fujisawa-shi mnt-by: MAINT-JP-WIDE last-modified: 2017-09-01T10:54:52Z source: APNIC rpki-ov-state: valid