These entries are queried from radb.net using whois, you can try my project getting these.
:AS53449 route: 136.228.96.0/19 descr: Proxy fbo OEC Fiber (AS53449) origin: AS53449 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: David.Friant [at] windstream.com 20180924 source: RADB last-modified: 2023-11-13T15:54:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 136.228.96.0/19 origin: AS53449 descr: Norman, OK admin-c: TOMAS69-ARIN tech-c: NOC32774-ARIN mnt-by: MNT-OFL-49 created: 2021-08-20T19:36:40Z last-modified: 2021-08-20T19:36:40Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 158.62.128.0/18 origin: AS53449 descr: Norman ,OK admin-c: TOMAS69-ARIN tech-c: NOC32774-ARIN mnt-by: MNT-OFL-49 created: 2021-08-20T19:37:34Z last-modified: 2021-08-20T19:37:34Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 158.62.128.0/18 descr: Proxy fbo OEC Fiber (AS53449) origin: AS53449 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: David.Friant [at] windstream.com 20200610 source: RADB last-modified: 2023-11-13T16:00:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 164.90.32.0/19 descr: Proxy fbo OEC Fiber (AS53449) origin: AS53449 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: John.Tishey [at] windstream.com 20190729 source: RADB last-modified: 2023-11-13T15:56:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 164.90.32.0/19 origin: AS53449 descr: Norman, Oklahoma admin-c: TOMAS69-ARIN tech-c: NOC32774-ARIN mnt-by: MNT-OFL-49 created: 2021-08-20T19:35:17Z last-modified: 2021-08-20T19:35:17Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 166.113.64.0/18 descr: Proxy fbo OEC Fiber (AS53449) origin: AS53449 remarks: Windstream Footprint remarks: IPENG-12790 mnt-by: MAINT-AS7029 changed: John.Tishey [at] windstream.com 20210609 source: RADB last-modified: 2023-11-13T16:05:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 166.113.64.0/18 origin: AS53449 descr: Norman, OK admin-c: TOMAS69-ARIN tech-c: NOC32774-ARIN mnt-by: MNT-OFL-49 created: 2021-08-20T19:36:03Z last-modified: 2021-08-20T19:36:03Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.89.64.0/18 origin: AS53449 descr: Norman, OK admin-c: TOMAS69-ARIN tech-c: NOC32774-ARIN mnt-by: MNT-OFL-49 created: 2023-10-25T14:46:10Z last-modified: 2023-10-25T14:46:10Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2604:a240::/32 origin: AS53449 descr: Norman, OK admin-c: TOMAS69-ARIN tech-c: NOC32774-ARIN mnt-by: MNT-OFL-49 created: 2021-08-20T19:43:11Z last-modified: 2021-08-20T19:43:11Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2604:a240::/32 descr: Proxy fbo OEC Fiber (AS53449) origin: AS53449 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: David.Friant [at] windstream.com 20180924 source: RADB last-modified: 2023-11-13T15:54:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source