These entries are queried from radb.net using whois, you can try my project getting these.
:AS-BITNAMES as-set: AS-BITNAMES descr: Develooper LLC Los Angeles, CA USA members: AS6647 tech-c: ABH12-ARIN admin-c: ABH12-ARIN mnt-by: MNT-SOLFO changed: ask [at] solfo.com 20101003 source: ARIN