These entries are queried from radb.net using whois, you can try my project getting these.
:AS18224 route: 210.56.128.0/20 descr: CrimsonLogic Pte Ltd origin: AS18224 notify: noc [at] CrimsonLogic.com mnt-by: MAINT-CRIMSONLOGIC changed: JohnWong [at] CrimsonLogic.com 20021118 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.56.128.0/24 descr: CrimsonLogic Pte Ltd origin: AS18224 notify: noc [at] CrimsonLogic.com mnt-by: MAINT-CRIMSONLOGIC changed: JohnWong [at] CrimsonLogic.com 20021120 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.56.132.0/24 descr: CrimsonLogic Pte Ltd origin: AS18224 notify: noc [at] CrimsonLogic.com mnt-by: MAINT-CRIMSONLOGIC changed: JohnWong [at] CrimsonLogic.com 20021120 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.56.133.0/24 descr: CrimsonLogic Pte Ltd origin: AS18224 notify: noc [at] CrimsonLogic.com mnt-by: MAINT-CRIMSONLOGIC changed: JohnWong [at] CrimsonLogic.com 20021120 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.56.134.0/24 descr: CrimsonLogic Pte Ltd origin: AS18224 notify: noc [at] CrimsonLogic.com mnt-by: MAINT-CRIMSONLOGIC changed: JohnWong [at] CrimsonLogic.com 20021120 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.56.135.0/24 descr: CrimsonLogic Pte Ltd origin: AS18224 notify: noc [at] CrimsonLogic.com mnt-by: MAINT-CRIMSONLOGIC changed: JohnWong [at] CrimsonLogic.com 20021218 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source