These entries are queried from radb.net using whois, you can try my project getting these.
:AS136988 route: 23.19.52.0/24 origin: AS136988 descr: MNT-NTGL route 023.019.052.000/24 AS136988 admin-c: LEASE-ARIN tech-c: LEASE-ARIN mnt-by: MNT-LU created: 2020-06-18T09:05:32Z last-modified: 2021-02-15T14:32:54Z source: ARIN rpki-ov-state: valid route: 23.19.53.0/24 origin: AS136988 descr: MNT-NTGL route 023.019.053.000/24 AS136988 admin-c: LEASE-ARIN tech-c: LEASE-ARIN mnt-by: MNT-LU created: 2020-06-18T09:11:10Z last-modified: 2021-02-15T14:32:54Z source: ARIN rpki-ov-state: valid route: 23.106.240.0/21 origin: AS136988 descr: LEASEWEB AUSTRALIA PTY LIMITED 122 Arthur Street, Level 7, Suite 6 NSW 2060, North Sydney, Australia mnt-by: MAINT-LEASEWEB-AU last-modified: 2022-11-30T15:36:12Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 31.186.38.0/23 origin: AS136988 mnt-by: mnt-ro-extra-1 created: 2023-10-19T07:18:22Z last-modified: 2023-10-19T07:18:22Z source: RIPE 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: 45.39.219.0/24 origin: AS136988 descr: OpenColo LOA'ed AS136988 3223 Kenneth St. Santa Clara, CA 95054 remarks: Geofeed: https://geofeed.egihosting.com/geofeed.csv mnt-by: MAINT-AS18779 changed: aaron [at] egihosting.com 20230718 #22:37:41Z source: RADB last-modified: 2023-11-13T16:17:48Z rpki-ov-state: valid route: 103.64.16.0/24 origin: AS136988 descr: Acronis Asia Pte. Ltd 8 Temasek Boulevard #30-01/02 Suntec Tower 3 Singapore 038988 mnt-by: MAINT-ACRONIS-SG last-modified: 2018-04-26T09:55:11Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.64.16.0/24 origin: AS136988 mnt-by: LEASEWEB-MNT created: 2018-04-30T12:26:52Z last-modified: 2018-09-04T19:12:34Z 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: 103.101.128.0/22 origin: AS136988 descr: LEASEWEB AUSTRALIA PTY LIMITED 122 Arthur Street, Level 7, Suite 6 NSW 2060, North Sydney, Australia mnt-by: MAINT-LEASEWEB-AU last-modified: 2018-05-08T08:09:45Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.101.128.0/22 origin: AS136988 mnt-by: LEASEWEB-MNT created: 2017-09-29T08:18:25Z last-modified: 2018-09-04T18:57:36Z 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: 104.164.186.0/24 origin: AS136988 descr: OpenColo LOA'ed AS136988 3223 Kenneth St. Santa Clara, CA 95054 remarks: Geofeed: https://geofeed.egihosting.com/geofeed.csv mnt-by: MAINT-AS18779 changed: aaron [at] egihosting.com 20230718 #22:37:24Z source: RADB last-modified: 2023-11-13T16:17:48Z rpki-ov-state: valid route: 154.30.8.0/24 origin: AS136988 descr: LEASEWEB AUSTRALIA PTY LIMITED mnt-by: MAINT-AS16265 changed: noc [at] fiberring.com 20220810 #10:03:38Z source: RADB last-modified: 2023-11-13T16:12:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 173.234.104.0/21 origin: AS136988 descr: LEASEWEB AUSTRALIA PTY LIMITED 122 Arthur Street, Level 7, Suite 6 NSW 2060, North Sydney, Australia mnt-by: MAINT-LEASEWEB-AU last-modified: 2019-11-18T15:53:16Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 173.234.106.0/23 origin: AS136988 descr: LEASEWEB AUSTRALIA PTY LIMITED 122 Arthur Street, Level 7, Suite 6 NSW 2060, North Sydney, Australia mnt-by: MAINT-LEASEWEB-AU last-modified: 2023-10-26T12:02:39Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 173.234.106.0/24 origin: AS136988 descr: LEASEWEB AUSTRALIA PTY LIMITED 122 Arthur Street, Level 7, Suite 6 NSW 2060, North Sydney, Australia mnt-by: MAINT-LEASEWEB-AU last-modified: 2024-02-12T16:21:04Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.217.133.0/24 origin: AS136988 descr: LEASEWEB AUSTRALIA PTY LIMITED mnt-by: MAINT-AS16265 changed: noc [at] fiberring.com 20220810 #10:02:13Z source: RADB last-modified: 2023-11-13T16:12:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2401:d040::/32 origin: AS136988 descr: LEASEWEB AUSTRALIA PTY LIMITED 122 Arthur Street, Level 7, Suite 6 NSW 2060, North Sydney, Australia mnt-by: MAINT-LEASEWEB-AU last-modified: 2018-05-08T08:09:45Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2401:d040::/32 origin: AS136988 mnt-by: LEASEWEB-MNT created: 2017-09-29T08:19:14Z last-modified: 2018-09-04T19:46:18Z 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 route6: 2401:d040::/36 origin: AS136988 descr: LEASEWEB AUSTRALIA PTY LIMITED 122 Arthur Street, Level 7, Suite 6 NSW 2060, North Sydney, Australia mnt-by: MAINT-LEASEWEB-AU last-modified: 2022-09-06T10:33:37Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2401:d040:1000::/36 origin: AS136988 descr: LEASEWEB AUSTRALIA PTY LIMITED 122 Arthur Street, Level 7, Suite 6 NSW 2060, North Sydney, Australia mnt-by: MAINT-LEASEWEB-AU last-modified: 2022-09-06T10:34:04Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2405:a280:32::/48 origin: AS136988 descr: ACRONIS-SYD1 admin-c: DCOTE-ARIN tech-c: DCOTE-ARIN mnt-by: MAINT-ACRONIS changed: team-dco-network [at] acronis.com 20230523 #21:44:17Z source: RADB last-modified: 2023-11-13T16:17:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2405:a280:32::/48 descr: ACRONIS-SYD1 origin: AS136988 mnt-by: MAINT-ACRONIS-SG last-modified: 2023-05-31T10:04:55Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:f5b5:2::/48 origin: AS136988 descr: v6 anycast syd admin-c: LEASE-ARIN tech-c: LEASE-ARIN mnt-by: MNT-LU created: 2024-01-18T11:33:54Z last-modified: 2024-01-18T11:33:54Z source: ARIN rpki-ov-state: valid route6: 2607:f5b5:3::/48 origin: AS136988 descr: v6 anycast syd admin-c: LEASE-ARIN tech-c: LEASE-ARIN mnt-by: MNT-LU created: 2024-01-18T11:34:52Z last-modified: 2024-01-18T11:34:52Z source: ARIN rpki-ov-state: valid