These entries are queried from radb.net using whois, you can try my project getting these.
:AS32107 route: 5.252.52.0/22 origin: AS32107 mnt-by: de-kis2-1-mnt created: 2019-02-12T14:35:29Z last-modified: 2019-02-12T14:35:29Z 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 route: 64.146.192.0/20 descr: Proxy-registered route object origin: AS32107 remarks: Wave Broadband mnt-by: MAINT-AS16713 changed: wbiggs [at] noanet.net 20150211 #17:36:28Z source: RADB last-modified: 2023-11-13T15:47:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.146.192.0/24 descr: Proxy-registered route object origin: AS32107 mnt-by: MAINT-AS16713 changed: rlorimor [at] noanet.net 20100706 #21:26:57Z source: RADB last-modified: 2023-11-13T15:47:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.146.193.0/24 descr: Proxy-registered route object origin: AS32107 remarks: Wave Cable mnt-by: MAINT-AS16713 changed: wbiggs [at] noanet.net 20150325 #19:35:11Z source: RADB last-modified: 2023-11-13T15:47:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.146.194.0/24 descr: Proxy-registered route object origin: AS32107 remarks: CenCom mnt-by: MAINT-AS16713 changed: wbiggs [at] noanet.net 20150325 #19:35:11Z source: RADB last-modified: 2023-11-13T15:47:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source