These entries are queried from radb.net using whois, you can try my project getting these.
:AS133734 route: 156.107.28.0/24 descr: Mckinsey & Company origin: AS133734 mnt-by: MAINT-AS31547 changed: os_ns [at] mckinsey.com 20170106 #13:25:04Z source: RADB last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.29.0/24 descr: Mckinsey & Company origin: AS133734 mnt-by: MAINT-AS31547 changed: os_ns [at] mckinsey.com 20170106 #13:25:04Z source: RADB last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.97.0/24 origin: AS133734 descr: McKinsey & Company mnt-by: MAINT-AS31547 changed: evgeny_smirnov [at] mckinsey.com 20190215 #17:02:37Z source: RADB last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.106.0/24 origin: AS133734 descr: McKinsey & Company, Inc. changed: evgeny_smirnov [at] mckinsey.com 20181203 #14:05:18Z source: RADB mnt-by: MAINT-AS31547 last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.107.0/24 origin: AS133734 descr: McKinsey & Company, Inc. changed: evgeny_smirnov [at] mckinsey.com 20181203 #14:05:43Z source: RADB mnt-by: MAINT-AS31547 last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.108.0/24 origin: AS133734 descr: McKinsey & Company, Inc. changed: evgeny_smirnov [at] mckinsey.com 20181203 #14:06:21Z source: RADB mnt-by: MAINT-AS31547 last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.109.0/24 origin: AS133734 descr: McKinsey & Company, Inc. changed: evgeny_smirnov [at] mckinsey.com 20181203 #14:06:46Z source: RADB mnt-by: MAINT-AS31547 last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.156.0/24 descr: Mckinsey & Company origin: AS133734 mnt-by: MAINT-AS31547 changed: os_ns [at] mckinsey.com 20170106 #13:25:04Z source: RADB last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.157.0/24 descr: Mckinsey & Company origin: AS133734 mnt-by: MAINT-AS31547 changed: os_ns [at] mckinsey.com 20170106 #13:25:04Z source: RADB last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.158.0/24 descr: Mckinsey & Company origin: AS133734 mnt-by: MAINT-AS31547 changed: os_ns [at] mckinsey.com 20170106 #13:25:04Z source: RADB last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.159.0/24 descr: Mckinsey & Company origin: AS133734 mnt-by: MAINT-AS31547 changed: os_ns [at] mckinsey.com 20170106 #13:25:04Z source: RADB last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.178.0/24 descr: Mckinsey & Company origin: AS133734 mnt-by: MAINT-AS31547 changed: os_ns [at] mckinsey.com 20170106 #13:25:04Z source: RADB last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 156.107.180.0/24 descr: Mckinsey & Company origin: AS133734 mnt-by: MAINT-AS31547 changed: os_ns [at] mckinsey.com 20170106 #13:25:04Z source: RADB last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source