These entries are queried from radb.net using whois, you can try my project getting these.
:AS31882 route: 45.62.128.0/19 origin: AS31882 descr: 100 Cummings Center Suite 350C Beverly MA 01915 United States admin-c: ANOA1-ARIN tech-c: ANOT-ARIN mnt-by: MNT-ABS-183 created: 2023-07-17T15:58:38Z last-modified: 2023-07-17T15:58:38Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.168.208.0/21 origin: AS31882 descr: 100 CUMMING CENTER Suite 236E BEVERLY MA 01915 United States admin-c: CH1189-ARIN tech-c: CH1189-ARIN mnt-by: MNT-PREVAR created: 2023-07-10T16:03:41Z last-modified: 2023-07-10T16:03:41Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source