These entries are queried from radb.net using whois, you can try my project getting these.
:AS-PEGTECHCUSTOMERS as-set: AS-PEGTECHCUSTOMERS descr: 55 South Market Street, Suite 320 San Jose CA 95113 United States members: AS36137,AS46230,AS54600,AS398823,AS398478,AS398993,AS399195,AS396073,AS140107,AS212667,AS58931,AS137899,AS400619,AS151630 admin-c: ADMIN5001-ARIN tech-c: NOC12550-ARIN mnt-by: MNT-PT-82 created: 2022-04-12T20:26:14Z last-modified: 2024-02-21T21:16:00Z source: ARIN