These entries are queried from radb.net using whois, you can try my project getting these.
:AS26174 route: 155.138.0.0/16 origin: AS26174 descr: CHTR - SAGINAW VALLEY STATE UNIVERSITY - NorthEast mnt-by: MAINT-CHTR-WD changed: publicipaddressing [at] charter.com 20190403 #15:16:53Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 155.138.0.0/18 descr: RR-RC-SAGINAW VALLEY STATE UNIVERSITY-Northeast origin: AS26174 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20190604 #16:19:23Z source: RADB last-modified: 2023-11-13T16:15:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source