These entries are queried from radb.net using whois, you can try my project getting these.
:AS-IPTRANSIT as-set: AS-IPTRANSIT descr: IP Transit, Inc. AS set members: AS46786,AS40824 tech-c: VKA18-ARIN tech-c: KBE97-ARIN admin-c: KBE97-ARIN mnt-by: MNT-IPTRA-3 changed: bk [at] iptransit.com 20081225 source: ARIN as-set: AS-IPTRANSIT descr: IP Transit, Inc. AS set members: AS46786,AS40824,AS35415,AS45470,AS7366,AS36024,AS61107,AS204006,AS13535,AS51154 members: AS-C4CUST-V,AS-ITS,AS8856,AS-EUROTELE,AS-CELLMEDIA,AS-ACSGROUP,AS-UNITEDNET,AS-50073 members: AS-6CELLMEDIA members: AS-WZ-EU,AS-WZ-US,AS-WZ-ASIA,AS-1-800,AS-ROOT members: AS205675 members: AS206376 members: AS200197 admin-c: KBE97-ARIN tech-c: VKA18-ARIN tech-c: KBE97-ARIN mnt-by: MAINT-AS46786 changed: noc [at] iptransit.com 20230411 #07:22:03Z source: RADB last-modified: 2023-11-13T16:15:42Z