These entries are queried from radb.net using whois, you can try my project getting these.
:AS3087 route: 199.53.17.0/24 origin: AS3087 descr: Akamai Technologies, Inc. mnt-by: MAINT-AS32787 changed: wgorny [at] akamai.com 20211026 #13:37:40Z source: RADB last-modified: 2023-11-13T16:13:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.53.79.0/24 descr: Akamai Technologies, Inc origin: AS3087 mnt-by: MAINT-AS32787 source: RADB changed: ameyer [at] akamai.com 20211025 last-modified: 2023-11-13T16:13:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.53.184.0/24 origin: AS3087 descr: Akamai Technologies, Inc. mnt-by: MAINT-AS32787 changed: wgorny [at] akamai.com 20211026 #13:38:35Z source: RADB last-modified: 2023-11-13T16:13:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.53.185.0/24 descr: CREDIT SUISSE-AS3087 (added by MAINT-AS3257) origin: AS3087 remarks: ------------------------------------------------- remarks: - This route object was registered by - remarks: - Reliance Globalcom Services, Inc MAINT-AS3257- remarks: - on behalf of their customer: - remarks: - CREDIT SUISSE-AS3087 NYC - remarks: ------------------------------------------------- notify: netguard [at] gtt.net mnt-by: MAINT-AS3257 changed: juhlson [at] relianceglobalcom.com 20090526 changed: netguard [at] gtt.net 20180615 source: RADB last-modified: 2023-11-13T15:53:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.53.185.0/24 descr: CSFB-PDC-EC origin: AS3087 mnt-by: CANA-MNT created: 2007-11-02T14:15:39Z last-modified: 2007-11-02T14:15:39Z 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: 199.53.195.0/24 descr: IBD-US-PRI origin: AS3087 mnt-by: CANA-MNT created: 2008-07-11T10:31:14Z last-modified: 2008-07-11T10:31:14Z 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: 199.53.195.0/24 descr: CREDIT SUISSE-AS3087 (added by MAINT-AS3257) origin: AS3087 remarks: ------------------------------------------------- remarks: - This route object was registered by - remarks: - Reliance Globalcom Services, Inc MAINT-AS3257- remarks: - on behalf of their customer: - remarks: - CREDIT SUISSE-AS3087 NYC - remarks: ------------------------------------------------- notify: netguard [at] gtt.net mnt-by: MAINT-AS3257 changed: juhlson [at] relianceglobalcom.com 20090526 changed: netguard [at] gtt.net 20180615 source: RADB last-modified: 2023-11-13T15:53:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source