These entries are queried from radb.net using whois, you can try my project getting these.
:AS54354 route: 38.103.210.0/24 descr: RR-BC-Judson Independent School District-San Antonio origin: AS54354 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.59.80.0/24 origin: AS54354 descr: Chess.com, LLC subnet admin-c: JKELTY-720-RADB tech-c: JKELTY-720-RADB mnt-by: MAINT-AS54354 changed: james.kelty [at] chess.com 20231221 # 1533Z source: RADB last-modified: 2023-12-21T15:33:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.59.81.0/24 origin: AS54354 descr: Chess.com, LLC subnet admin-c: JKELTY-720-RADB tech-c: JKELTY-720-RADB mnt-by: MAINT-AS54354 changed: james.kelty [at] chess.com 20231221 # 1533Z source: RADB last-modified: 2023-12-21T15:33:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.59.82.0/24 origin: AS54354 descr: Chess.com, LLC subnet admin-c: JKELTY-720-RADB tech-c: JKELTY-720-RADB mnt-by: MAINT-AS54354 changed: james.kelty [at] chess.com 20231221 # 1534Z source: RADB last-modified: 2023-12-21T15:34:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.59.83.0/24 origin: AS54354 descr: Chess.com, LLC subnet admin-c: JKELTY-720-RADB tech-c: JKELTY-720-RADB mnt-by: MAINT-AS54354 changed: james.kelty [at] chess.com 20231221 # 1535Z source: RADB last-modified: 2023-12-21T15:35:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.59.84.0/24 origin: AS54354 descr: Chess.com LLC subnet admin-c: JKELTY-720-RADB tech-c: JKELTY-720-RADB mnt-by: MAINT-AS54354 changed: james.kelty [at] chess.com 20231221 # 1536Z source: RADB last-modified: 2023-12-21T15:36:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.59.85.0/24 origin: AS54354 descr: Chess.com, LLC subnet admin-c: JKELTY-720-RADB tech-c: JKELTY-720-RADB mnt-by: MAINT-AS54354 changed: james.kelty [at] chess.com 20231221 # 1537Z source: RADB last-modified: 2023-12-21T15:37:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.59.86.0/24 origin: AS54354 descr: Chess.com, LLC subnet admin-c: JKELTY-720-RADB tech-c: JKELTY-720-RADB mnt-by: MAINT-AS54354 changed: james.kelty [at] chess.com 20231221 # 1538Z source: RADB last-modified: 2023-12-21T15:38:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.59.87.0/24 origin: AS54354 descr: Chess.com, LLC subnet admin-c: JKELTY-720-RADB tech-c: JKELTY-720-RADB mnt-by: MAINT-AS54354 changed: james.kelty [at] chess.com 20231221 # 1538Z source: RADB last-modified: 2023-12-21T15:38:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source