These entries are queried from radb.net using whois, you can try my project getting these.
:AS35998 route: 67.21.152.0/22 descr: Peel District School Board descr: 5650 Hurontario St descr: Mississauga, Ontario descr: Canada origin: AS35998 mnt-by: MNT-FRONT-16 changed: dorellana [at] frontiernetworks.ca 20160609 source: ARIN rpki-ov-state: valid route: 67.21.153.0/24 origin: AS35998 descr: 5650 Hurontario St Mississauga, Ontario admin-c: NETWO3414-ARIN tech-c: TECHS91-ARIN mnt-by: MNT-FRONT-16 created: 2022-03-29T06:04:25Z last-modified: 2022-03-29T06:04:25Z source: ARIN rpki-ov-state: valid route: 67.21.154.0/24 origin: AS35998 descr: 5650 Hurontario St Mississauga, Ontario admin-c: NETWO3414-ARIN tech-c: TECHS91-ARIN mnt-by: MNT-FRONT-16 created: 2022-03-29T06:05:08Z last-modified: 2022-03-29T06:05:08Z source: ARIN rpki-ov-state: valid route: 205.167.54.0/23 origin: AS35998 descr: 5650 Hurontario St Mississauga ON L5R-1C6 Canada admin-c: BAWDE1-ARIN tech-c: BAWDE1-ARIN tech-c: DHANO-ARIN mnt-by: MNT-PDSB-2 created: 2020-09-19T03:04:26Z last-modified: 2023-11-30T16:57:36Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.167.54.0/24 origin: AS35998 descr: 5650 Hurontario St Mississauga ON L5R-1C6 Canada admin-c: BAWDE1-ARIN tech-c: BAWDE1-ARIN tech-c: DHANO-ARIN mnt-by: MNT-PDSB-2 created: 2022-12-06T19:45:14Z last-modified: 2023-11-30T16:57:36Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.167.55.0/24 origin: AS35998 descr: 5650 Hurontario St Mississauga ON L5R-1C6 Canada admin-c: BAWDE1-ARIN tech-c: BAWDE1-ARIN tech-c: DHANO-ARIN mnt-by: MNT-PDSB-2 created: 2022-12-06T19:45:50Z last-modified: 2023-11-30T16:57:36Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source