These entries are queried from radb.net using whois, you can try my project getting these.
:AS136792 route: 41.74.203.0/24 descr: MIMECAST origin: AS136792 notify: net-support [at] ap.equinix.com notify: ap-noc [at] ap.equinix.com mnt-by: MAINT-EQUINIXPAC changed: robertson-madridejos.torres [at] ap.equinix.com 20170710 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.13.69.0/24 descr: Mimecast Australia Pty Limited origin: AS136792 notify: net-support [at] ap.equinix.com notify: ap-noc [at] ap.equinix.com mnt-by: MAINT-EQUINIXPAC changed: mesclamado [at] ap.equinix.com 20170804 source: NTTCOM rpki-ov-state: valid route: 103.96.20.0/22 descr: Proxy route object registered by AS38195 origin: AS136792 remarks: This route object was created by Superloop on behalf of a customer. notify: peering [at] superloop.com mnt-by: MAINT-AS38195 changed: peering [at] superloop.com 20200219 source: RADB last-modified: 2023-11-13T16:18:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.96.20.0/24 descr: Mimecast Australia Pty Limited origin: AS136792 notify: net-support [at] ap.equinix.com notify: ap-noc [at] ap.equinix.com mnt-by: MAINT-EQUINIXPAC changed: cnillas [at] ap.equinix.com 20170810 source: NTTCOM rpki-ov-state: valid route: 103.96.20.0/24 origin: AS136792 descr: Mimecast Australia Pty Ltd Level 3 55 Southbank Boulevard Southbank mnt-by: MAINT-MIMECAST-AU last-modified: 2018-06-13T15:06:57Z source: APNIC rpki-ov-state: valid route: 103.96.21.0/24 descr: Mimecast Australia Pty Limited origin: AS136792 notify: net-support [at] ap.equinix.com notify: ap-noc [at] ap.equinix.com mnt-by: MAINT-EQUINIXPAC changed: cnillas [at] ap.equinix.com 20170810 source: NTTCOM rpki-ov-state: valid route: 103.96.21.0/24 origin: AS136792 descr: Mimecast Australia Pty Ltd Level 3 55 Southbank Boulevard Southbank mnt-by: MAINT-MIMECAST-AU last-modified: 2018-06-13T15:06:57Z source: APNIC rpki-ov-state: valid route: 103.96.22.0/24 origin: AS136792 descr: Mimecast Australia Pty Ltd Level 3 55 Southbank Boulevard Southbank mnt-by: MAINT-MIMECAST-AU last-modified: 2018-06-13T15:06:57Z source: APNIC rpki-ov-state: valid route: 103.96.23.0/24 origin: AS136792 descr: Mimecast Australia Pty Ltd Level 3 55 Southbank Boulevard Southbank mnt-by: MAINT-MIMECAST-AU last-modified: 2018-06-13T15:06:57Z source: APNIC rpki-ov-state: valid route: 170.10.134.0/24 descr: MIMECAST origin: AS136792 notify: net-support [at] ap.equinix.com notify: ap-noc [at] ap.equinix.com mnt-by: MAINT-EQUINIXPAC changed: robertson-madridejos.torres [at] ap.equinix.com 20200309 source: NTTCOM rpki-ov-state: valid route: 170.10.134.0/24 origin: AS136792 descr: 191 Spring St Lexington MA 02421 United States admin-c: CHARL197-ARIN tech-c: MIMEC-ARIN mnt-by: MNT-MNA-95 created: 2022-08-11T16:58:39Z last-modified: 2023-08-16T05:14:31Z source: ARIN rpki-ov-state: valid route: 170.10.134.0/24 origin: AS136792 descr: Mimecast NA admin-c: MCNA-NOC tech-c: MCNA-NOC mnt-by: MAINT-AS42427 changed: kwarren [at] mimecast.com 20200306 source: RADB last-modified: 2023-11-13T16:00:09Z rpki-ov-state: valid route: 170.10.135.0/24 origin: AS136792 descr: 191 Spring St Lexington MA 02421 United States admin-c: CHARL197-ARIN tech-c: MIMEC-ARIN mnt-by: MNT-MNA-95 created: 2022-08-11T16:58:59Z last-modified: 2023-08-16T05:14:31Z source: ARIN rpki-ov-state: valid route: 170.10.135.0/24 origin: AS136792 descr: Mimecast NA admin-c: MCNA-NOC tech-c: MCNA-NOC mnt-by: MAINT-AS42427 changed: kwarren [at] mimecast.com 20200306 source: RADB last-modified: 2023-11-13T16:00:09Z rpki-ov-state: valid route: 170.10.142.0/24 descr: MIMECAST origin: AS136792 notify: net-support [at] ap.equinix.com notify: ap-noc [at] ap.equinix.com mnt-by: MAINT-EQUINIXPAC changed: robertson-madridejos.torres [at] ap.equinix.com 20200309 source: NTTCOM rpki-ov-state: valid route: 170.10.142.0/24 origin: AS136792 descr: Mimecast admin-c: MCNA-NOC tech-c: MCNA-NOC notify: netops [at] mimecast.com mnt-by: MAINT-AS42427 changed: lsevcik [at] mimecast.com 20200227 source: RADB last-modified: 2023-11-13T16:00:01Z rpki-ov-state: valid route: 180.189.28.0/24 descr: Mimecast Australia Pty Limited origin: AS136792 notify: net-support [at] ap.equinix.com notify: ap-noc [at] ap.equinix.com mnt-by: MAINT-EQUINIXPAC changed: mesclamado [at] ap.equinix.com 20170804 source: NTTCOM rpki-ov-state: valid route: 216.145.217.0/24 origin: AS136792 descr: Mimecast NA admin-c: MCNA-NOC tech-c: MCNA-NOC notify: netops [at] mimecast.com mnt-by: MAINT-AS42427 changed: lsevcik [at] mimecast.com 20230131 source: RADB last-modified: 2023-11-13T16:13:50Z rpki-ov-state: valid route: 216.145.217.0/24 descr: Mimecast Australia Pty LTD origin: AS136792 mnt-by: MAINT-EQUINIXPAC changed: mravi [at] ap.equinix.com 20230217 source: NTTCOM last-modified: 2023-02-17T00:38:36Z rpki-ov-state: valid route: 216.145.217.0/24 origin: AS136792 descr: 191 Spring St Lexington MA 02421 United States admin-c: CHARL197-ARIN tech-c: MIMEC-ARIN mnt-by: MNT-MNA-95 created: 2023-08-16T10:44:41Z last-modified: 2023-08-16T10:44:41Z source: ARIN rpki-ov-state: valid route: 216.145.218.0/24 origin: AS136792 descr: 191 Spring St Lexington MA 02421 United States admin-c: CHARL197-ARIN tech-c: MIMEC-ARIN mnt-by: MNT-MNA-95 created: 2022-08-11T16:33:44Z last-modified: 2023-08-16T05:14:31Z source: ARIN rpki-ov-state: valid route: 216.145.218.0/24 origin: AS136792 descr: Mimecast admin-c: MCNA-NOC tech-c: MCNA-NOC notify: netops [at] mimecast.com mnt-by: MAINT-AS42427 changed: lsevcik [at] mimecast.com 20191218 source: RADB last-modified: 2023-11-13T15:59:22Z rpki-ov-state: valid route: 216.145.218.0/24 descr: Mimecast origin: AS136792 notify: net-support [at] ap.equinix.com notify: ap-noc [at] ap.equinix.com mnt-by: MAINT-EQUINIXPAC changed: antan [at] ap.equinix.com 20191223 source: NTTCOM rpki-ov-state: valid route: 216.145.222.0/24 origin: AS136792 descr: 191 Spring St Lexington MA 02421 United States admin-c: CHARL197-ARIN tech-c: MIMEC-ARIN mnt-by: MNT-MNA-95 created: 2022-08-11T16:50:07Z last-modified: 2023-08-16T05:14:31Z source: ARIN rpki-ov-state: valid route: 216.145.222.0/24 descr: Mimecast origin: AS136792 notify: net-support [at] ap.equinix.com notify: ap-noc [at] ap.equinix.com mnt-by: MAINT-EQUINIXPAC changed: antan [at] ap.equinix.com 20191223 source: NTTCOM rpki-ov-state: valid route: 216.145.222.0/24 origin: AS136792 descr: Mimecast admin-c: MCNA-NOC tech-c: MCNA-NOC notify: netops [at] mimecast.com mnt-by: MAINT-AS42427 changed: lsevcik [at] mimecast.com 20191218 source: RADB last-modified: 2023-11-13T15:59:22Z rpki-ov-state: valid route6: 2401:73c0::/48 origin: AS136792 descr: Mimecast Australia Pty Ltd Level 3 55 Southbank Boulevard Southbank mnt-by: MAINT-MIMECAST-AU last-modified: 2018-12-07T15:00:10Z source: APNIC rpki-ov-state: valid route6: 2401:73c0::/48 descr: MIMECAST origin: AS136792 notify: net-support [at] ap.equinix.com notify: ap-noc [at] ap.equinix.com mnt-by: MAINT-EQUINIXPAC changed: robertson-madridejos.torres [at] ap.equinix.com 20181206 source: NTTCOM rpki-ov-state: valid route6: 2401:73c0:1::/48 descr: Proxy route object registered by AS38195 origin: AS136792 remarks: This route object was created by Superloop on behalf of a customer. notify: peering [at] superloop.com mnt-by: MAINT-AS38195 changed: peering [at] superloop.com 20200210 source: RADB last-modified: 2023-11-13T16:18:14Z rpki-ov-state: valid route6: 2401:73c0:1::/48 origin: AS136792 descr: Mimecast Australia Pty Ltd Level 3 55 Southbank Boulevard Southbank mnt-by: MAINT-MIMECAST-AU last-modified: 2023-08-17T09:24:29Z source: APNIC rpki-ov-state: valid route6: 2401:73c0:4::/48 origin: AS136792 descr: Mimecast Australia Pty Ltd Level 3 55 Southbank Boulevard Southbank mnt-by: MAINT-MIMECAST-AU last-modified: 2023-08-17T09:24:30Z source: APNIC rpki-ov-state: valid