These entries are queried from radb.net using whois, you can try my project getting these.
:AS18897 route: 66.135.64.0/19 descr: Montana Sky Networks origin: AS18897 remarks: added by Blackfoot on behalf of customer mnt-by: MAINT-AS21947 changed: networkengineers [at] blackfoot.com 20181108 #23:42:12Z source: RADB last-modified: 2023-11-13T15:55:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.64.0/22 descr: Montana Sky Networks origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:41:03Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.68.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20120730 #16:20:19Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.69.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20120730 #16:20:42Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.70.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20120730 #16:21:05Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.71.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20120730 #16:21:30Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.73.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:43:45Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.74.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:44:11Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.75.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20120730 #16:22:27Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.76.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20120730 #16:21:55Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.77.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:44:32Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.78.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:44:54Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.79.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:45:15Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.80.0/21 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:50:18Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.84.0/22 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:42:07Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.135.88.0/21 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:42:43Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 107.191.160.0/20 descr: Montana Sky Networks origin: AS18897 remarks: added by Blackfoot on behalf of customer mnt-by: MAINT-AS21947 changed: networkengineers [at] blackfoot.com 20181108 #23:46:10Z source: RADB last-modified: 2023-11-13T15:55:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.192.0/20 descr: Montana Sky Networks origin: AS18897 remarks: added by Blackfoot on behalf of customer mnt-by: MAINT-AS21947 changed: networkengineers [at] blackfoot.com 20181108 #23:45:19Z source: RADB last-modified: 2023-11-13T15:55:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.192.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:21:40Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.193.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20120730 #16:19:26Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.194.0/23 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:39:16Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.195.0/24 descr: Montana Sky Networks origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20130328 #16:57:32Z source: RADB last-modified: 2023-11-13T15:45:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.196.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:22:15Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.197.0/24 descr: Montana Sky Networks origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20130328 #16:58:01Z source: RADB last-modified: 2023-11-13T15:45:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.198.0/24 descr: Montana Sky Networks origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20130328 #16:58:31Z source: RADB last-modified: 2023-11-13T15:45:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.199.0/24 descr: Montana Sky Networks origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20130328 #16:58:55Z source: RADB last-modified: 2023-11-13T15:45:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.201.0/24 descr: Montana Sky Networks origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20130328 #16:59:40Z source: RADB last-modified: 2023-11-13T15:45:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.202.0/24 descr: Montana Sky Netwokrs origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20130328 #17:00:13Z source: RADB last-modified: 2023-11-13T15:45:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.203.0/24 descr: Montana Sky Networks origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20130328 #17:00:58Z source: RADB last-modified: 2023-11-13T15:45:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.204.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:22:40Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.205.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:23:03Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.206.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:23:27Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.123.207.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:29:57Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.176.0/20 descr: Montana Sky Networks origin: AS18897 remarks: added by Blackfoot on behalf of customer mnt-by: MAINT-AS21947 changed: networkengineers [at] blackfoot.com 20181108 #23:47:07Z source: RADB last-modified: 2023-11-13T15:55:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.176.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:34:36Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.177.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:46:21Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.178.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:35:34Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.179.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:46:39Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.180.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:36:17Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.181.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:47:07Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.182.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:47:29Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.183.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:47:54Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.184.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:48:11Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.185.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:37:39Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.186.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:48:32Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.187.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:49:01Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.188.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:49:24Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.189.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:49:46Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.190.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:38:09Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.191.0/24 descr: Montana Sky Net origin: AS18897 mnt-by: MAINT-AS21947 changed: ipadmin [at] transaria.com 20110620 #15:38:32Z source: RADB last-modified: 2023-11-13T15:41:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2604:7c80::/32 origin: AS18897 descr: MontanaSky Networks remarks: added by Blackfoot on behalf of customer mnt-by: MAINT-AS21947 changed: networkengineers [at] blackfoot.com 20210112 #21:32:34Z source: RADB last-modified: 2023-11-13T16:03:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:b580::/32 origin: AS18897 descr: MontanaSky Networks remarks: added by Blackfoot on behalf of customer mnt-by: MAINT-AS21947 changed: networkengineers [at] blackfoot.com 20210112 #21:33:53Z source: RADB last-modified: 2023-11-13T16:03:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source