These entries are queried from radb.net using whois, you can try my project getting these.
:AS23540 route: 65.23.70.0/24 descr: PNAP-CHG ussignal - discovery origin: AS23540 mnt-by: MAINT-AS1828 changed: beth [at] internap.com 20031006 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: 65.192.199.0/24 descr: PNAP-CHG ussignal - discovery origin: AS23540 mnt-by: MAINT-AS1828 changed: beth [at] internap.com 20031006 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: 65.201.219.0/24 descr: PNAP-CHG ussignal - discovery origin: AS23540 mnt-by: MAINT-AS1828 changed: beth [at] internap.com 20031006 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: 206.82.108.0/24 origin: AS23540 descr: United States admin-c: NOC32907-ARIN tech-c: NOC32907-ARIN mnt-by: MNT-SL-1624 created: 2022-03-01T15:26:45Z last-modified: 2022-03-01T15:26:45Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source