These entries are queried from radb.net using whois, you can try my project getting these.
:AS136397 route: 103.98.238.0/24 origin: AS136397 descr: Interpublic Australia Holdings Pty Ltd 32 Grosvenor Street mnt-by: MAINT-IAHPL-AU last-modified: 2018-08-24T01:51:35Z source: APNIC route: 170.200.83.0/24 descr: The Interpublic Group Of Companies, Inc origin: AS136397 mnt-by: MNT-IGC-35 changed: eis.netadmin [at] interpublic.com 20180809 source: ARIN-NONAUTH route: 170.200.85.0/24 descr: The Interpublic Group Of Companies, Inc origin: AS136397 mnt-by: MNT-IGC-35 changed: eis.netadmin [at] interpublic.com 20180809 source: ARIN-NONAUTH route6: 2001:df2:e700::/48 origin: AS136397 descr: Proxy route remarks: Proxy route mnt-by: MAINT-AS7545 changed: core-neteng-support [at] tpg.com.au 20200625 source: RADB route6: 2001:df2:e700::/48 origin: AS136397 descr: Interpublic Australia Holdings Pty Ltd 32 Grosvenor Street mnt-by: MAINT-IAHPL-AU last-modified: 2020-03-25T09:54:36Z source: APNIC