These entries are queried from radb.net using whois, you can try my project getting these.
:AS17984 route: 63.223.44.0/24 descr: Proxy-registered route object origin: AS17984 remarks: This route object is for a BtN customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found, and remarks: since some BtN peers filter based on these objects remarks: this route may be rejected if this object is not created. remarks: remarks: Please contact peering [at] cais.net if you have any remarks: questions regarding this object. mnt-by: MAINT-AS3491 changed: sajwani [at] pccwbtn.com 20220427 source: RADB last-modified: 2023-11-13T16:10:52Z rpki-ov-state: valid route: 205.252.208.0/24 descr: Proxy-registered route object origin: AS17984 remarks: This route object is for a BtN customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found, and remarks: since some BtN peers filter based on these objects remarks: this route may be rejected if this object is not created. remarks: remarks: Please contact peering [at] cais.net if you have any remarks: questions regarding this object. mnt-by: MAINT-AS3491 changed: sajwani [at] pccwbtn.com 20230426 source: RADB last-modified: 2023-11-13T16:17:06Z rpki-ov-state: valid