These entries are queried from radb.net using whois, you can try my project getting these.
:AS400536 route: 103.21.52.0/24 origin: AS400536 descr: Tier.Net Customer Object mnt-by: MAINT-AS397423 changed: jacob [at] tier.net 20230721 #21:44:45Z source: RADB last-modified: 2023-11-13T16:17:48Z rpki-ov-state: valid route: 103.65.228.0/24 origin: AS400536 descr: Tier.Net Customer Object mnt-by: MAINT-AS397423 changed: jacob [at] tier.net 20230721 #21:44:24Z source: RADB last-modified: 2023-11-13T16:17:48Z rpki-ov-state: valid route: 104.164.35.0/24 origin: AS400536 descr: OpenColo LOA'ed3223 Kenneth St. Santa Clara, CA 95054 remarks: Geofeed: https://geofeed.egihosting.com/geofeed.csv admin-c: SBR126-ARIN tech-c: AIO4-ARIN tech-c: CHENJ-ARIN tech-c: HERNA1269-ARIN tech-c: IPADM814-ARIN tech-c: KTBIJ-ARIN tech-c: NOC2660-ARIN tech-c: SIMKI10-ARIN tech-c: TRANH54-ARIN tech-c: TRANR22-ARIN mnt-by: MNT-EGNL-1 created: 2023-11-15T19:43:04Z last-modified: 2024-04-10T22:12:11Z source: ARIN rpki-ov-state: valid route: 104.164.35.0/24 origin: AS400536 descr: OpenColo LOA'ed AS400536 3223 Kenneth St. Santa Clara, CA 95054 mnt-by: MAINT-AS18779 changed: aaron [at] egihosting.com 20240315 # 1341Z source: RADB last-modified: 2024-03-15T13:41:25Z rpki-ov-state: valid route: 104.253.194.0/24 origin: AS400536 descr: OpenColo LOA'ed AS#400536 3223 Kenneth St. Santa Clara, CA 95054 remarks: Geofeed: https://geofeed.egihosting.com/geofeed.csv mnt-by: MAINT-AS18779 changed: aaron [at] egihosting.com 20230918 #22:45:21Z source: RADB last-modified: 2023-11-13T16:18:36Z rpki-ov-state: valid route: 104.253.195.0/24 origin: AS400536 descr: OpenColo LOA'ed AS400536 3223 Kenneth St. Santa Clara, CA 95054 remarks: Geofeed: https://geofeed.egihosting.com/geofeed.csv mnt-by: MAINT-AS18779 changed: aaron [at] egihosting.com 20230918 #22:46:22Z source: RADB last-modified: 2023-11-13T16:18:36Z rpki-ov-state: valid route: 142.252.9.0/24 origin: AS400536 descr: Nodestop, LLC admin-c: SBR126-ARIN tech-c: AIO4-ARIN tech-c: CHENJ-ARIN tech-c: HERNA1269-ARIN tech-c: IPADM814-ARIN tech-c: KTBIJ-ARIN tech-c: NOC2660-ARIN tech-c: SIMKI10-ARIN tech-c: TRANH54-ARIN tech-c: TRANR22-ARIN mnt-by: MNT-EGNL-1 created: 2024-04-17T12:04:11Z last-modified: 2024-04-17T12:04:11Z source: ARIN rpki-ov-state: valid route6: 2a06:a005:5f7::/48 origin: AS400536 mnt-by: ROUTE48-MNT created: 2022-06-30T01:39:24Z last-modified: 2022-06-30T01:39:24Z 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: valid route6: 2a06:a005:5f7::/48 origin: AS400536 descr: Tier.Net Customer Object mnt-by: MAINT-AS397423 changed: jacob [at] tier.net 20230705 #17:03:40Z source: RADB last-modified: 2023-11-13T16:17:41Z rpki-ov-state: valid