These entries are queried from radb.net using whois, you can try my project getting these.
:AS-PRLSS as-set: AS-PRLSS descr: Peerless Network, Inc. members: AS21808,AS-PRLSS-CUSTOMERS tech-c: THI48-ARIN admin-c: THI48-ARIN mnt-by: MNT-PEERL-10 changed: zcochran [at] peerlessnetwork.com 20150118 source: ARIN