These entries are queried from radb.net using whois, you can try my project getting these.
:AS42753 route: 77.74.24.0/21 descr: Proxy-registered route object origin: AS42753 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 20081007 source: RADB last-modified: 2023-11-13T15:42:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 77.74.24.0/21 descr: MTK-ERA origin: AS42753 mnt-by: MNT-MTK-ERA created: 2007-10-01T14:06:53Z last-modified: 2007-10-03T13:20:57Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source