These entries are queried from radb.net using whois, you can try my project getting these.
:AS33350 route: 137.91.0.0/16 origin: AS33350 descr: Arizona Public Service 400 N 5th Street Phoenix, AZ 85004 United States admin-c: IPNET3-ARIN tech-c: IPNET3-ARIN mnt-by: MNT-APS-6-Z created: 2022-03-29T18:11:51Z last-modified: 2022-03-29T18:11:51Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 137.91.0.0/24 origin: AS33350 descr: Iron Mountain Data Centers, LLC One Federal Street Boston, MA 02111 United States admin-c: IMDC-Network Operations tech-c: IMDC-Network Operations notify: imdcnetops [at] ironmountain.com mnt-by: MAINT-AS12025 changed: ammon.guernsey [at] ironmountain.com 20211015 source: RADB last-modified: 2023-11-13T16:08:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 137.91.5.0/24 origin: AS33350 descr: Iron Mountain Data Centers, LLC One Federal Street Boston, MA 02111 United States admin-c: IMDC-Network Operations tech-c: IMDC-Network Operations notify: imdcnetops [at] ironmountain.com mnt-by: MAINT-AS12025 changed: ammon.guernsey [at] ironmountain.com 20211015 source: RADB last-modified: 2023-11-13T16:08:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 137.91.11.0/24 origin: AS33350 descr: Iron Mountain Data Centers, LLC One Federal Street Boston, MA 02111 United States admin-c: IMDC-Network Operations tech-c: IMDC-Network Operations notify: imdcnetops [at] ironmountain.com mnt-by: MAINT-AS12025 changed: ammon.guernsey [at] ironmountain.com 20211015 source: RADB last-modified: 2023-11-13T16:08:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 137.91.102.0/24 descr: Outside origin: AS33350 mnt-by: MAINT-AS33350 changed: majordomo4321 [at] aps.com 20050203 #18:47:30(UTC) source: RADB last-modified: 2023-11-13T15:39:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 137.91.103.0/24 origin: AS33350 descr: Iron Mountain Data Centers, LLC One Federal Street Boston, MA 02111 United States admin-c: IMDC-Network Operations tech-c: IMDC-Network Operations notify: imdcnetops [at] ironmountain.com mnt-by: MAINT-AS12025 changed: ammon.guernsey [at] ironmountain.com 20211015 source: RADB last-modified: 2023-11-13T16:08:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 137.91.114.0/24 descr: Outside origin: AS33350 mnt-by: MAINT-AS33350 changed: majordomo4321 [at] aps.com 20050203 #18:38:20(UTC) source: RADB last-modified: 2023-11-13T15:39:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source