These entries are queried from radb.net using whois, you can try my project getting these.
:AS29819 route: 66.238.186.0/24 descr: ACC/ADN Matrix Info Systems Route origin: AS29819 notify: routing [at] adnc.com mnt-by: MAINT-ADN-WEST changed: nmontante [at] adnc.com 20030725 changed: routing [at] adnc.com 20040812 #19:25:34(UTC) changed: routing [at] adnc.com 20040812 #00:21:15(UTC) source: RADB last-modified: 2023-11-13T15:39:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 98.158.160.0/20 origin: AS29819 descr: SD remarks: Proxy object for AS29819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 98.158.160.0/21 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] adnc.com 20100107 #23:59:08Z source: RADB last-modified: 2023-11-13T15:40:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 98.158.160.0/23 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20150417 #18:35:41Z source: RADB last-modified: 2023-11-13T15:47:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 98.158.162.0/24 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20150326 #19:09:16Z source: RADB last-modified: 2023-11-13T15:47:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 98.158.163.0/24 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20150326 #19:09:54Z source: RADB last-modified: 2023-11-13T15:47:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 98.158.164.0/24 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20150326 #19:10:36Z source: RADB last-modified: 2023-11-13T15:47:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 98.158.165.0/24 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20150326 #19:11:13Z source: RADB last-modified: 2023-11-13T15:47:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 98.158.167.0/24 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] adnc.com 20100223 #00:52:20Z source: RADB last-modified: 2023-11-13T15:40:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 98.158.168.0/21 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] adnc.com 20100107 #00:00:24Z source: RADB last-modified: 2023-11-13T15:40:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 98.158.171.0/24 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20150417 #18:36:34Z source: RADB last-modified: 2023-11-13T15:47:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.88.136.0/24 descr: ACC/ADN Matrix Info Systems Route #2 origin: AS29819 notify: routing [at] adnc.com mnt-by: MAINT-ADN-WEST changed: nmontante [at] adnc.com 20030814 changed: routing [at] adnc.com 20040812 #19:26:43(UTC) changed: routing [at] adnc.com 20040812 #00:26:16(UTC) source: RADB last-modified: 2023-11-13T15:39:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.216.199.0/24 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20150417 #18:38:04Z source: RADB last-modified: 2023-11-13T15:47:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.216.212.0/24 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20150417 #18:38:48Z source: RADB last-modified: 2023-11-13T15:47:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.216.238.0/23 descr: ADN Matrix Info Systems Route origin: AS29819 notify: routing [at] adnc.com mnt-by: MAINT-ADN-WEST changed: nmontante [at] adnc.com 20040226 changed: routing [at] adnc.com 20040812 #19:33:52(UTC) source: RADB last-modified: 2023-11-13T15:39:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.216.238.0/24 descr: Customer Route Object - Matrix Information Systems origin: AS29819 mnt-by: MAINT-ADN-WEST changed: routing [at] adnc.com 20100823 #23:30:24Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source