These entries are queried from radb.net using whois, you can try my project getting these.
:AS24449 route: 202.153.8.0/21 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090604 source: RADB last-modified: 2023-11-13T15:49:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.8.0/22 descr: EMSD Data Center country: HK origin: AS24449 mnt-by: MAINT-HK-EMSD last-modified: 2010-07-19T09:12:44Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.8.0/22 descr: Proxy-registered route object origin: AS24449 remarks: This is a HGC customer route-object remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found. remarks: remarks: Please contact radb [at] hutchcity.com if you have any remarks: questions regarding this object. notify: radb [at] hutchcity.com mnt-by: MAINT-AS9304 changed: radb [at] hutchcity.com 20090917 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.8.0/22 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090604 source: RADB last-modified: 2023-11-13T15:49:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.8.0/23 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090608 source: RADB last-modified: 2023-11-13T15:49:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.8.0/24 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090608 source: RADB last-modified: 2023-11-13T15:49:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.8.0/24 descr: Proxy-registered route object origin: AS24449 remarks: This is a HGC customer route-object remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found. remarks: remarks: Please contact radb [at] hgcbroadband.com if you have any remarks: questions regarding this object. notify: radb [at] hgcbroadband.com mnt-by: MAINT-AS9304 changed: radb [at] hgcbroadband.com 20210907 source: NTTCOM last-modified: 2021-09-07T02:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.9.0/24 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090608 source: RADB last-modified: 2023-11-13T15:49:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.9.0/24 descr: Proxy-registered route object origin: AS24449 remarks: This is a HGC customer route-object remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found. remarks: remarks: Please contact radb [at] hgcbroadband.com if you have any remarks: questions regarding this object. notify: radb [at] hgcbroadband.com mnt-by: MAINT-AS9304 changed: radb [at] hgcbroadband.com 20210907 source: NTTCOM last-modified: 2021-09-07T02:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.10.0/23 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090608 source: RADB last-modified: 2023-11-13T15:49:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.10.0/24 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090608 source: RADB last-modified: 2023-11-13T15:49:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.11.0/24 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090608 source: RADB last-modified: 2023-11-13T15:49:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.12.0/22 descr: EMSD Data Center country: HK origin: AS24449 mnt-by: MAINT-HK-EMSD last-modified: 2008-09-04T07:54:34Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.12.0/22 descr: Proxy-registered route object origin: AS24449 remarks: This is a HGC customer route-object remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found. remarks: remarks: Please contact radb [at] hutchcity.com if you have any remarks: questions regarding this object. notify: radb [at] hutchcity.com mnt-by: MAINT-AS9304 changed: radb [at] hutchcity.com 20090917 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.12.0/22 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090604 source: RADB last-modified: 2023-11-13T15:49:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.12.0/23 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090604 source: RADB last-modified: 2023-11-13T15:49:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.12.0/24 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090604 source: RADB last-modified: 2023-11-13T15:49:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.12.0/24 descr: Proxy-registered route object origin: AS24449 remarks: This is a HGC customer route-object remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found. remarks: remarks: Please contact radb [at] hgcbroadband.com if you have any remarks: questions regarding this object. notify: radb [at] hgcbroadband.com mnt-by: MAINT-AS9304 changed: radb [at] hgcbroadband.com 20210907 source: NTTCOM last-modified: 2021-09-07T02:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.13.0/24 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090604 source: RADB last-modified: 2023-11-13T15:49:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.13.0/24 descr: Proxy-registered route object origin: AS24449 remarks: This is a HGC customer route-object remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found. remarks: remarks: Please contact radb [at] hgcbroadband.com if you have any remarks: questions regarding this object. notify: radb [at] hgcbroadband.com mnt-by: MAINT-AS9304 changed: radb [at] hgcbroadband.com 20210907 source: NTTCOM last-modified: 2021-09-07T02:02:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.14.0/23 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090604 source: RADB last-modified: 2023-11-13T15:49:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.14.0/24 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090604 source: RADB last-modified: 2023-11-13T15:49:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.153.15.0/24 descr: iAdvantage Ltd. (Customer Route) origin: AS24449 remarks: This route object is for a iAdvantage customer route remarks: which is being exported under this origin AS. mnt-by: MAINT-AS9729 changed: hostmaster [at] iadvantage.net 20090604 source: RADB last-modified: 2023-11-13T15:49:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source