These entries are queried from radb.net using whois, you can try my project getting these.
:AS45200 route: 61.91.73.0/24 descr: SPANSION origin: AS45200 mnt-by: MAINT-AS7470 changed: register [at] asianet.co.th 20080506 #05:08:21Z source: RADB last-modified: 2023-11-13T15:39:55Z rpki-ov-state: valid