These entries are queried from radb.net using whois, you can try my project getting these.
:AS53848 route: 23.252.176.0/20 origin: AS53848 descr: Mountain Telephone remarks: Created on behalf of AS53848, Mountain Telephone mnt-by: MAINT-AS394111 changed: matthew [at] foothills.coop 20200414 #19:03:40Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 23.252.176.0/20 origin: AS53848 mnt-by: MNT-MRTCC descr: Mountain Rural Telephone Cooperative Corporation, Inc. dba Mountain Telephone PO Box 399 405 Main St. West Liberty KY 41472 United States tech-c: BRADL360-ARIN tech-c: DANIE2729-ARIN admin-c: KEETO-ARIN source: ARIN created: 2020-06-23T15:08:50Z last-modified: 2020-06-23T15:08:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 52.124.22.0/23 origin: AS53848 descr: Mountain Telephone remarks: Created on behalf of AS53848, Mountain Telephone mnt-by: MAINT-AS394111 changed: matthew [at] foothills.coop 20201029 #11:46:58Z source: RADB last-modified: 2023-11-13T16:02:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 52.124.22.0/23 origin: AS53848 mnt-by: MNT-MRTCC descr: Mountain Rural Telephone Cooperative Corporation, Inc dba Mountain Telephone PO Box 399 405 Main St. West Liberty KY 41472 United States tech-c: BRADL360-ARIN tech-c: DANIE2729-ARIN admin-c: KEETO-ARIN source: ARIN created: 2020-10-20T12:05:56Z last-modified: 2020-10-20T12:05:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.45.182.0/23 origin: AS53848 descr: Mountain Telephone remarks: Created on behalf of AS53848, Mountain Telephone mnt-by: MAINT-AS394111 changed: matthew [at] foothills.coop 20201014 #17:41:22Z source: RADB last-modified: 2023-11-13T16:02:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.45.182.0/23 origin: AS53848 mnt-by: MNT-MRTCC descr: Mountain Rural Telephone Cooperative Corporation, Inc. dba Mountain Telephone PO Box 399 405 Main St. West Liberty KY 41472 United States tech-c: BRADL360-ARIN tech-c: DANIE2729-ARIN admin-c: KEETO-ARIN source: ARIN created: 2020-10-02T13:14:56Z last-modified: 2020-10-02T13:14:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.254.40.0/22 origin: AS53848 descr: Mountain Telephone remarks: Created on behalf of AS53848, Mountain Telephone mnt-by: MAINT-AS394111 changed: matthew [at] foothills.coop 20200414 #19:04:39Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.254.40.0/22 origin: AS53848 mnt-by: MNT-MRTCC descr: Mountain Rural Telephone Cooperative Corporation, Inc. dba Mountain Telephone PO Box 399 405 Main St. West Liberty KY 41472 United States tech-c: BRADL360-ARIN tech-c: DANIE2729-ARIN admin-c: KEETO-ARIN source: ARIN created: 2020-06-23T15:10:20Z last-modified: 2020-06-23T15:10:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.255.160.0/21 origin: AS53848 mnt-by: MNT-MRTCC descr: Mountain Rural Telephone Cooperative Corporation, Inc dba Mountain Telephone PO Box 399 405 Main St. West Liberty KY 41472 United States tech-c: BRADL360-ARIN tech-c: DANIE2729-ARIN admin-c: KEETO-ARIN source: ARIN created: 2020-06-23T15:11:46Z last-modified: 2020-06-23T15:11:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.255.160.0/21 origin: AS53848 descr: Mountain Telephone remarks: Created on behalf of AS53848, Mountain Telephone mnt-by: MAINT-AS394111 changed: matthew [at] foothills.coop 20200414 #19:05:19Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.127.128.0/21 origin: AS53848 descr: http://www.mrtc.com Standard NOC hours 8 AM to 5 PM Eastern admin-c: KEETO-ARIN tech-c: BRADL360-ARIN tech-c: DANIE2729-ARIN mnt-by: MNT-MRTCC created: 2022-06-16T12:46:53Z last-modified: 2022-06-16T12:46:53Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.127.128.0/21 origin: AS53848 descr: Mountain Telephone remarks: Created on behalf of AS53848, Mountain Telephone mnt-by: MAINT-AS394111 changed: matthew [at] foothills.coop 20230707 #15:31:35Z source: RADB last-modified: 2023-11-13T16:17:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.144.0/20 origin: AS53848 descr: Mountain Telephone remarks: Created on behalf of AS53848, Mountain Telephone mnt-by: MAINT-AS394111 changed: matthew [at] foothills.coop 20200414 #19:06:57Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.211.144.0/20 origin: AS53848 mnt-by: MNT-MRTCC descr: Mountain Rural Telephone Cooperative Corporation, Inc. dba Mountain Telephone PO Box 399 405 Main St. West Liberty KY 41472 United States tech-c: BRADL360-ARIN tech-c: DANIE2729-ARIN admin-c: KEETO-ARIN source: ARIN created: 2020-06-23T15:07:08Z last-modified: 2020-06-23T15:07:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source