These entries are queried from radb.net using whois, you can try my project getting these.
:AS-NEXTHOP as-set: AS-NEXTHOP descr: Nexthop AS members: AS49788 members: AS57997 members: AS61227 members: AS16185 members: AS29300 members: AS-DIRECTCONNECT members: AS34989 members: AS42400 members: AS44654 members: AS-MNS members: AS48376 members: AS48630 members: AS50531 members: AS50562 members: AS-ITPAYS members: AS51850 members: AS-NAMEUNIT members: AS51886 members: AS57423 members: AS61238 members: AS202008 members: AS-DATEK-INST members: AS21119 members: AS-WAN members: AS16065 members: AS16065:AS-CRNA members: AS35754 members: AS59562 members: AS210012 members: AS-BAYONETTE members: AS209404 members: AS39236 members: AS35120 members: AS60130 members: as-fiberverket members: AS49574 members: AS209903 members: AS212514 members: AS212514:AS-Customers members: AS64424 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: NEXTHOP-MNT notify: drift [at] nexthop.no created: 2012-11-03T03:35:56Z last-modified: 2023-11-02T16:56:10Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: ****************************