These entries are queried from radb.net using whois, you can try my project getting these.
:AS-OMKC-SET as-set: AS-OMKC-SET descr: OMKC and Customers with AS members: AS47165 members: AS47246 members: AS31200 members: AS61084 members: AS15870 members: AS61228 members: AS36040 members: AS57411 members: AS61151 members: AS49880 members: AS198384 members: AS57629 members: AS-PROMOBIT tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MNT-OMKC created: 2009-07-06T10:17:52Z last-modified: 2022-11-10T07:00:45Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: ****************************