These entries are queried from radb.net using whois, you can try my project getting these.
:AS16590 route: 69.74.90.0/24 descr: Discovery Capital 20 Marshall Street 3rd Floor Norwalk, CT 06854 origin: AS16590 remarks: Abuse / UCE complaints abuse [at] lightpath.net remarks: Network related issues noc [at] cv.net mnt-by: MNT-CVNT changed: hostmaster [at] cv.net 20050711 source: ARIN rpki-ov-state: valid