These entries are queried from radb.net using whois, you can try my project getting these.
:AS18674 route: 66.136.40.0/24 descr: RR-RC-Frost National Bank-Austin origin: AS18674 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 75.11.242.0/24 descr: RR-RC-Frost National Bank-Austin origin: AS18674 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.184.178.0/24 descr: Frost National Bank San Antonio, Texas USA origin: AS18674 notify: kevin.mcmahon [at] frostbank.com mnt-by: MAINT-AS18674 changed: kevin.mcmahon [at] frostbank.com 20000929 source: RADB last-modified: 2023-11-13T15:39:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.247.77.0/24 origin: AS18674 descr: 3838 Rogers Rd San Antonio TX 78251 United States admin-c: NTS24-ARIN tech-c: NTS24-ARIN mnt-by: MNT-FNB-19 created: 2022-10-13T03:40:45Z last-modified: 2022-10-13T03:40:45Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:128:8000::/44 origin: AS18674 descr: 3838 Rogers Rd San Antonio TX 78251 United States remarks: Frost Bank IPv6 admin-c: NTS24-ARIN tech-c: NTS24-ARIN mnt-by: MNT-FNB-19 created: 2022-10-13T22:44:35Z last-modified: 2022-10-13T22:44:35Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source