These entries are queried from radb.net using whois, you can try my project getting these.
:AS7770 route: 209.172.0.0/19 descr: ADDED FOR - AS7770 origin: AS7770 notify: rpd [at] 123.net mnt-by: I123-MNT changed: rpd [at] 123.net 20081129 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.172.0.0/19 descr: PNAP-CHG USSIGNAL origin: AS7770 mnt-by: MAINT-AS1828 changed: jcornwell [at] internap.com 20031028 source: RADB last-modified: 2023-11-13T16:13:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.172.3.0/24 descr: RR-RC-NT CONSULTING SOLUTIONS-Great Lakes origin: AS7770 admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN notify: PublicIPAdressing [at] charter.com mnt-by: MAINT-RR changed: PublicIPAdressing [at] charter.com 20211004 source: RADB last-modified: 2023-11-13T16:15:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.172.6.0/24 descr: RR-RC-NT CONSULTING SOLUTIONS-Midwest origin: AS7770 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20190507 #19:31:40Z source: RADB last-modified: 2023-11-13T16:15:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source