These entries are queried from radb.net using whois, you can try my project getting these.
:AS13916 route: 66.159.224.0/19 origin: AS13916 descr: Databank SLC3 Customer mnt-by: MAINT-AS13767 changed: networking [at] databank.com 20210310 #17:10:15Z source: RADB last-modified: 2023-11-13T16:05:09Z rpki-ov-state: valid route: 66.159.224.0/24 origin: AS13916 descr: 892 Ross Drive Sunnyvale CA 94089 United States admin-c: NETWO2061-ARIN tech-c: NETWO2061-ARIN mnt-by: MNT-PROOF created: 2021-03-09T18:11:35Z last-modified: 2021-03-09T18:11:35Z source: ARIN rpki-ov-state: valid route: 66.159.229.0/24 origin: AS13916 descr: 925 W Maude Ave Sunnyvale CA 94085 United States admin-c: NETWO2061-ARIN tech-c: NETWO2061-ARIN mnt-by: MNT-PROOF created: 2022-03-11T08:54:49Z last-modified: 2022-03-11T08:54:49Z source: ARIN rpki-ov-state: valid route: 148.163.128.0/24 descr: Proofpoint Inc. origin: AS13916 mnt-by: MNT-PROOF changed: arin-management [at] proofpoint.com 20160315 source: ARIN rpki-ov-state: valid route: 148.163.129.0/24 descr: Proofpoint Inc. origin: AS13916 mnt-by: MNT-PROOF changed: arin-management [at] proofpoint.com 20160315 source: ARIN rpki-ov-state: valid route: 148.163.130.0/24 descr: Proofpoint Inc. origin: AS13916 mnt-by: MNT-PROOF changed: arin-management [at] proofpoint.com 20160315 source: ARIN rpki-ov-state: valid route: 148.163.131.0/24 descr: Proofpoint Inc. origin: AS13916 mnt-by: MNT-PROOF changed: arin-management [at] proofpoint.com 20160315 source: ARIN rpki-ov-state: valid route: 148.163.132.0/24 descr: Proofpoint Inc. origin: AS13916 mnt-by: MNT-PROOF changed: arin-management [at] proofpoint.com 20160315 source: ARIN rpki-ov-state: valid route: 148.163.133.0/24 descr: Proofpoint Inc. origin: AS13916 mnt-by: MNT-PROOF changed: arin-management [at] proofpoint.com 20160315 source: ARIN rpki-ov-state: valid route: 148.163.134.0/24 descr: Proofpoint Inc. origin: AS13916 mnt-by: MNT-PROOF changed: arin-management [at] proofpoint.com 20160315 source: ARIN rpki-ov-state: valid route: 148.163.135.0/24 descr: Proofpoint Inc. origin: AS13916 mnt-by: MNT-PROOF changed: arin-management [at] proofpoint.com 20160315 source: ARIN rpki-ov-state: valid route: 205.220.160.0/19 origin: AS13916 descr: Databank-SLC Customer-proofpoint mnt-by: MAINT-AS13767 changed: networking [at] databank.com 20190523 #14:33:38Z source: RADB last-modified: 2023-11-13T15:56:25Z rpki-ov-state: valid route: 208.83.136.0/22 origin: AS13916 descr: Databank SLC3 Customer - Proofpoint mnt-by: MAINT-AS13767 changed: networking [at] databank.com 20200108 #22:48:07Z source: RADB last-modified: 2023-11-13T15:59:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.83.136.0/24 origin: AS13916 descr: Proofpoint Inc admin-c: NETWO2061-ARIN tech-c: NETWO2061-ARIN mnt-by: MNT-PROOF created: 2020-10-13T10:15:40Z last-modified: 2022-09-16T20:21:17Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.83.138.0/24 origin: AS13916 descr: Databank SLC3 Customer - Proofpoint mnt-by: MAINT-AS13767 changed: networking [at] databank.com 20200108 #22:34:54Z source: RADB last-modified: 2023-11-13T15:59:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.83.138.0/24 origin: AS13916 descr: Proofpoint Inc admin-c: NETWO2061-ARIN tech-c: NETWO2061-ARIN mnt-by: MNT-PROOF created: 2020-10-13T10:21:59Z last-modified: 2022-09-16T20:21:17Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:0:2900::/44 origin: AS13916 descr: Databank-SLC Customer-proofpoint-V6 mnt-by: MAINT-AS13767 changed: networking [at] databank.com 20190523 #14:35:48Z source: RADB last-modified: 2023-11-13T15:56:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:0:2900::/48 origin: AS13916 descr: MNT-CLOUD-2 route 2620:0000:2900:0000:0000:0000:0000:0000/48 AS13916 admin-c: NETWO2061-ARIN tech-c: NETWO2061-ARIN mnt-by: MNT-PROOF created: 2020-10-17T13:09:36Z last-modified: 2022-09-16T20:21:17Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:0:2901::/48 origin: AS13916 descr: MNT-CLOUD-2 route 2620:0000:2901:0000:0000:0000:0000:0000/48 AS13916 admin-c: NETWO2061-ARIN tech-c: NETWO2061-ARIN mnt-by: MNT-PROOF created: 2020-10-17T13:03:09Z last-modified: 2022-09-16T20:21:17Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:100:9008::/47 descr: Proofpoint Inc. origin: AS13916 mnt-by: MNT-PROOF changed: arin-management [at] proofpoint.com 20170615 source: ARIN rpki-ov-state: valid route6: 2620:100:9008::/47 descr: Proxy Registration for Databank-DFW Customer origin: AS13916 mnt-by: MAINT-AS13767 changed: networking [at] databank.com 20180716 #19:34:38Z source: RADB last-modified: 2023-11-13T15:54:03Z rpki-ov-state: valid