These entries are queried from radb.net using whois, you can try my project getting these.
:AS19257 route: 23.252.64.0/20 descr: arin direct allocation origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.net 20131113 #22:35:07Z source: RADB last-modified: 2023-11-13T15:45:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.171.146.0/23 origin: AS19257 descr: PROXY OBJECT FOR APOGEE-SPRINT mnt-by: MAINT-AS19257 changed: aig [at] subrigo.com 20200904 #18:52:23Z source: RADB last-modified: 2023-11-13T16:01:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.212.26.0/24 descr: QuadraNet Route origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.net 20150912 #15:29:05Z source: RADB last-modified: 2023-11-13T15:48:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.37.136.0/24 descr: From Metro Data Path, Inc. origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.net 20150828 #06:32:57Z source: RADB last-modified: 2023-11-13T15:48:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.37.159.0/24 descr: From Mzima origin: AS19257 mnt-by: MAINT-AS19257 changed: lawrence [at] subrigo.net 20110422 #22:14:05Z source: RADB last-modified: 2023-11-13T15:41:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.231.134.0/24 descr: AS-EBUSINESSBPO PROXY ROUTE OBJECT origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.com 20160519 #05:41:16Z source: RADB last-modified: 2023-11-13T15:49:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.255.148.0/22 descr: From Subrigo Networks Corporation origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.net 20150210 #00:18:44Z source: RADB last-modified: 2023-11-13T15:47:06Z rpki-ov-state: valid route: 107.150.160.0/23 origin: AS19257 descr: Direct Allocation mnt-by: MAINT-AS19257 changed: aig [at] subrigo.com 20200219 #22:14:33Z source: RADB last-modified: 2023-11-13T15:59:45Z rpki-ov-state: valid route: 107.150.180.0/22 origin: AS19257 descr: Direct Allocation mnt-by: MAINT-AS19257 changed: aig [at] subrigo.com 20200219 #22:15:10Z source: RADB last-modified: 2023-11-13T15:59:45Z rpki-ov-state: valid route: 107.150.184.0/21 origin: AS19257 descr: Direct Allocation mnt-by: MAINT-AS19257 changed: aig [at] subrigo.com 20200219 #22:15:35Z source: RADB last-modified: 2023-11-13T15:59:45Z rpki-ov-state: valid route: 138.229.64.0/18 descr: arin direct allocation origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.net 20140512 #22:41:44Z source: RADB last-modified: 2023-11-13T15:46:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.229.69.0/24 descr: ADDED FOR - AS19257 origin: AS19257 notify: noc [at] 123.net mnt-by: I123-MNT changed: rpd [at] 123.net 20181031 source: LEVEL3 rpki-ov-state: valid route: 162.218.176.0/22 descr: arin direct allocation origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.net 20130809 #21:56:28Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.222.88.0/21 descr: arin direct allocation origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.net 20131002 #06:42:57Z source: RADB last-modified: 2023-11-13T15:45:38Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 167.160.0.0/19 descr: arin direct allocation origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.net 20140305 #09:06:03Z source: RADB last-modified: 2023-11-13T15:46:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.55.28.0/22 descr: arin direct allocation origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.net 20130305 #02:42:21Z source: RADB last-modified: 2023-11-13T15:45:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.180.152.0/21 descr: arin direct allocation origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.net 20110701 #05:50:15Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: valid route: 208.89.56.0/22 descr: From Metro Data Path, Inc. origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.net 20150828 #04:01:12Z source: RADB last-modified: 2023-11-13T15:48:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.193.226.0/24 descr: From Mzima origin: AS19257 mnt-by: MAINT-AS19257 changed: lawrence [at] subrigo.net 20110422 #22:13:33Z source: RADB last-modified: 2023-11-13T15:41:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.193.227.0/24 descr: From Mzima origin: AS19257 mnt-by: MAINT-AS19257 changed: lawrence [at] subrigo.net 20110422 #22:13:12Z source: RADB last-modified: 2023-11-13T15:41:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2605:1880::/32 descr: SUBRIGO-NETBLK15 origin: AS19257 mnt-by: MAINT-AS19257 changed: atilla.gahbro [at] subrigo.com 20160930 #14:03:48Z source: RADB last-modified: 2023-11-13T15:49:53Z rpki-ov-state: valid