These entries are queried from radb.net using whois, you can try my project getting these.
:AS18973 route: 198.138.68.0/23 descr: Tag Online origin: AS18973 member-of: RS-COMM_NSFNET mnt-by: MAINT-AS18973 changed: bob [at] tink.com 20001115 source: RADB last-modified: 2023-11-13T15:39:32Z rpki-ov-state: valid route: 198.138.68.0/24 origin: AS18973 descr: Tag Online member-of: RS-COMM_NSFNET notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20231129 # 1615Z source: RADB last-modified: 2023-11-29T16:15:36Z rpki-ov-state: valid route: 198.138.68.0/27 descr: a.vlan17.client.tagonline.com origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180407 #01:37:26Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 198.138.68.40/29 descr: Open Flows origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180407 #01:17:08Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 198.138.68.48/29 descr: VLAN2 origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180408 #02:10:16Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 198.138.68.56/29 descr: HSIX origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180327 #16:04:14Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 198.138.68.80/29 descr: a.vlan11.tagonline.com origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180408 #04:04:15Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 198.138.68.136/29 descr: WWWAC origin: AS18973 mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180327 #16:10:17Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 198.138.68.144/28 descr: b.16.gw.tagonline.com origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180407 #01:40:47Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 198.138.68.160/28 descr: c.16.gw.tagonline.com origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180407 #01:41:30Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 198.138.69.0/24 descr: Tag Online origin: AS18973 member-of: RS-COMM_NSFNET mnt-by: MAINT-AS18973 changed: bob [at] tink.com 20001115 source: RADB last-modified: 2023-11-13T15:39:32Z rpki-ov-state: valid route: 198.138.69.16/29 descr: DLI origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180407 #01:42:33Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 207.111.76.0/22 descr: Tag Online origin: AS18973 member-of: RS-COMM_NSFNET mnt-by: MAINT-AS18973 changed: bob [at] tink.com 20001115 source: RADB last-modified: 2023-11-13T15:39:32Z rpki-ov-state: valid route: 207.111.76.0/24 descr: a.vlan6.gw.tagonline.com origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180407 #01:44:13Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 207.111.77.0/27 descr: 77.smtp.tagonline.com origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180407 #01:47:31Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 207.111.78.0/24 descr: b.vlan6.gw.tagonline.com origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180407 #01:49:51Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 207.111.79.0/27 descr: 79.smtp.tagonline.com origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180407 #01:50:35Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 207.111.79.32/27 descr: a.vlan22.tagonline.com origin: AS18973 notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20180407 #01:51:23Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: valid route: 209.178.230.210/32 descr: Tag Online origin: AS18973 member-of: RS-COMM_NSFNET mnt-by: MAINT-AS18973 changed: bob [at] tink.com 20080802 source: RADB last-modified: 2023-11-13T15:39:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:1a00::/32 descr: Tag Online origin: AS18973 notify: net-admin [at] tagonline.com notify: andrew [at] gideon.org mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20140706 #16:06:48Z source: RADB last-modified: 2023-11-13T15:46:33Z rpki-ov-state: valid route6: 2606:1a00::/32 origin: AS18973 descr: 6 Prospect Village Plaza Clifton NJ 07013 United States admin-c: AG18-ARIN tech-c: AG18-ARIN tech-c: BPM12-ARIN mnt-by: MNT-TAGONL created: 2021-07-27T17:54:42Z last-modified: 2022-08-26T21:56:15Z source: ARIN rpki-ov-state: valid route6: 2606:1a00:1000::/36 descr: TAG Online via NTT origin: AS18973 notify: net-admin [at] tagonline.com notify: andrew [at] gideon.org mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20170718 #17:45:58Z source: RADB last-modified: 2023-11-13T15:51:17Z rpki-ov-state: valid route6: 2606:1a00:2000::/36 origin: AS18973 descr: TAG Online via Lightpath notify: andrew [at] gideon.org notify: net-admin [at] tagonline.com mnt-by: MAINT-AS18973 changed: net-admin [at] tagonline.com 20210727 #22:21:37Z source: RADB last-modified: 2023-11-13T16:08:00Z rpki-ov-state: valid