These entries are queried from radb.net using whois, you can try my project getting these.
:AS16400 route: 23.171.224.0/24 origin: AS16400 descr: Wavelength LLC 1612 N 20th St Aberdeen SD 57401 United States admin-c: GUTHM4-ARIN tech-c: GUTHM4-ARIN mnt-by: MNT-WIL-61 created: 2022-01-18T03:32:28Z last-modified: 2022-01-18T03:32:28Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2605:1bc0::/32 origin: AS16400 descr: Wavelength LLC 1612 N 20th St Aberdeen SD 57401 United States admin-c: GUTHM4-ARIN tech-c: GUTHM4-ARIN mnt-by: MNT-WIL-61 created: 2022-01-18T03:32:56Z last-modified: 2022-01-18T03:32:56Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source