These entries are queried from radb.net using whois, you can try my project getting these.
:AS8657 route: 88.221.64.0/22 descr: Akamai Technologies origin: AS8657 mnt-by: AKAM1-RIPE-MNT created: 2020-02-10T15:26:11Z last-modified: 2020-02-10T15:26:11Z 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: valid route: 104.89.164.0/22 descr: Akamai Technologies origin: AS8657 mnt-by: MNT-AKAMAI source: ARIN changed: ip-admin [at] akamai.com 20200227 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.89.164.0/22 descr: AKAMAI descr: (announced by CPRMNET) origin: AS8657 mnt-by: CPRM-MNT created: 2015-04-16T16:00:21Z last-modified: 2018-09-04T18:10:04Z source: RIPE-NONAUTH 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: 104.89.168.0/23 descr: AKAMAI descr: (announced by CPRMNET) origin: AS8657 mnt-by: CPRM-MNT created: 2015-04-16T16:00:21Z last-modified: 2018-09-04T18:10:04Z source: RIPE-NONAUTH 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: 104.89.192.0/20 descr: AKAMAI descr: (announced by CPRMNET) origin: AS8657 mnt-by: CPRM-MNT created: 2015-04-16T15:18:55Z last-modified: 2018-09-04T18:10:03Z source: RIPE-NONAUTH 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: 185.96.172.0/22 descr: CPRMNET Backbone origin: AS8657 mnt-by: CPRM-MNT created: 2015-04-23T10:00:34Z last-modified: 2015-04-23T10:00:34Z 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: valid route: 195.8.0.0/19 descr: CPRMNET Backbone origin: AS8657 notify: pac [at] cprm.net mnt-by: CPRM-MNT created: 1970-01-01T00:00:00Z last-modified: 2001-09-22T09:32:40Z 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: valid route: 197.159.160.0/19 descr: Companhia Santomense de Telecomunicacoes descr: (announced by CPRMNET) origin: AS8657 mnt-by: CPRM-MNT created: 2011-10-28T10:51:15Z last-modified: 2018-09-04T16:59:43Z source: RIPE-NONAUTH 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: 217.168.112.0/21 descr: CPRMNET Backbone origin: AS8657 mnt-by: CPRM-MNT created: 2016-01-08T15:28:55Z last-modified: 2016-01-08T15:28:55Z 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: valid route6: 2001:15d8::/32 descr: CPRMNET Backbone V6 origin: AS8657 notify: pac [at] cprm.net mnt-by: CPRM-MNT created: 2011-01-13T09:45:53Z last-modified: 2011-01-13T09:45:53Z 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: valid