These entries are queried from radb.net using whois, you can try my project getting these.
:AS8057 route: 65.19.224.0/19 descr: Spectrum Networks Proxy Registration origin: AS8057 mnt-by: MAINT-AS11404 changed: phil [at] spectrumnet.us 20110215 #19:03:32Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.19.224.0/19 origin: AS8057 descr: PO Box 3068 Great Falls MT 59403 United States admin-c: IPADM350-ARIN tech-c: IPADM350-ARIN mnt-by: MNT-VSNT created: 2022-09-15T19:59:19Z last-modified: 2022-09-15T19:59:19Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.19.224.0/20 descr: 3-RIVERS 3 Rivers Telephone remarks: (added by Shaw on behalf of customer) origin: AS8057 notify: ipadmin [at] sjrb.ca notify: ipadmin_bigpipe [at] bigpipeinc.com mnt-by: MAINT-AS6327 changed: ipadmin_bigpipe [at] bigpipeinc.com 20050519 source: RADB last-modified: 2024-03-05T21:00:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.19.240.0/20 descr: VSNT Vision Net, Inc. remarks: (added by Shaw on behalf of customer) origin: AS8057 notify: ipadmin [at] sjrb.ca notify: ipadmin_bigpipe [at] bigpipeinc.com mnt-by: MAINT-AS6327 changed: ipadmin_bigpipe [at] bigpipeinc.com 20050519 source: RADB last-modified: 2024-03-05T21:00:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.113.32.0/19 origin: AS8057 descr: PO Box 3068 Great Falls MT 59403 United States admin-c: IPADM350-ARIN tech-c: IPADM350-ARIN mnt-by: MNT-VSNT created: 2022-09-15T19:59:47Z last-modified: 2022-09-15T19:59:47Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 70.33.0.0/18 origin: AS8057 descr: PO Box 3068 Great Falls MT 59403 United States admin-c: IPADM350-ARIN tech-c: IPADM350-ARIN mnt-by: MNT-VSNT created: 2022-09-15T20:00:10Z last-modified: 2022-09-15T20:00:10Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.75.0.0/18 origin: AS8057 descr: PO Box 3068 Great Falls MT 59403 United States admin-c: IPADM350-ARIN tech-c: IPADM350-ARIN mnt-by: MNT-VSNT created: 2022-09-15T20:00:31Z last-modified: 2022-09-15T20:00:31Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.75.32.0/19 descr: VSNT-1 Vision Net, Inc. remarks: Added by Shaw on behalf of customer origin: AS8057 notify: ipadmin [at] sjrb.ca notify: ipadmin-sbs [at] sjrb.ca mnt-by: MAINT-AS6327 changed: ipadmin-sbs [at] sjrb.ca 20080208 source: RADB last-modified: 2024-03-05T21:00:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.39.16.0/22 origin: AS8057 descr: Montana Outback Wireless Inc. 1220 Front St. Fort Benton MT 59442 United States admin-c: MILLE3066-ARIN tech-c: MILLE3066-ARIN mnt-by: MNT-MOW-9 created: 2020-12-15T21:04:40Z last-modified: 2020-12-15T21:04:40Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.230.160.0/20 descr: Spectrum Networks proxy Registration origin: AS8057 mnt-by: MAINT-AS11404 changed: erica [at] spectrumnet.us 20130519 #02:20:10Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.38.104.0/21 descr: PNAP-SEF Vision Net origin: AS8057 mnt-by: MAINT-AS1828 changed: djaffers [at] internap.com 20111111 source: RADB last-modified: 2023-11-13T16:14:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.38.104.0/21 origin: AS8057 descr: PO Box 3068 Great Falls MT 59403 United States admin-c: IPADM350-ARIN tech-c: IPADM350-ARIN mnt-by: MNT-VSNT created: 2022-09-15T20:00:52Z last-modified: 2022-09-15T20:00:52Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.74.250.0/24 descr: INACOMMT Inacom Information Sytems. remarks: (added by Shaw on behalf of customer) origin: AS8057 notify: ipadmin [at] sjrb.ca notify: ipadmin_bigpipe [at] bigpipeinc.com mnt-by: MAINT-AS6327 changed: ipadmin_bigpipe [at] bigpipeinc.com 20050519 source: RADB last-modified: 2024-03-05T21:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.126.116.0/24 origin: AS8057 descr: PO Box 3068 Great Falls MT 59403 United States admin-c: IPADM350-ARIN tech-c: IPADM350-ARIN mnt-by: MNT-VSNT created: 2022-09-15T20:01:12Z last-modified: 2022-09-15T20:01:12Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.129.224.0/19 origin: AS8057 descr: PO Box 3068 Great Falls MT 59403 United States admin-c: IPADM350-ARIN tech-c: IPADM350-ARIN mnt-by: MNT-VSNT created: 2022-09-15T20:01:42Z last-modified: 2022-09-15T20:01:42Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.146.96.0/19 origin: AS8057 descr: PO Box 3068 Great Falls MT 59403 United States admin-c: IPADM350-ARIN tech-c: IPADM350-ARIN mnt-by: MNT-VSNT created: 2022-09-15T20:28:36Z last-modified: 2022-09-15T20:28:36Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.220.0.0/19 origin: AS8057 descr: PO Box 3068 Great Falls MT 59403 United States admin-c: IPADM350-ARIN tech-c: IPADM350-ARIN mnt-by: MNT-VSNT created: 2022-09-15T20:28:55Z last-modified: 2022-09-15T20:28:55Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:470:1c2::/48 origin: AS8057 descr: NET-2001-470-1c2---48-AS8057 admin-c: ZH17-ARIN tech-c: ZH17-ARIN mnt-by: MNT-HURC source: ARIN created: 2023-09-29T01:45:16Z last-modified: 2023-09-29T01:45:16Z rpki-ov-state: valid route6: 2604:300::/32 descr: VISIONNET origin: AS8057 mnt-by: AS8057-MNT changed: scott.harvey [at] level3.com 20110526 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:f370::/32 origin: AS8057 descr: PO Box 3068 Great Falls MT 59403 United States admin-c: IPADM350-ARIN tech-c: IPADM350-ARIN mnt-by: MNT-VSNT created: 2022-09-15T20:29:14Z last-modified: 2022-09-15T20:29:14Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:f370::/32 descr: VISIONNET origin: AS8057 mnt-by: AS8057-MNT changed: epperson [at] level3.net 20100816 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:f988::/32 descr: VISIONNET origin: AS8057 mnt-by: AS8057-MNT changed: epperson [at] level3.net 20100816 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source