These entries are queried from radb.net using whois, you can try my project getting these.
:AS23028 route: 38.229.0.0/16 descr: LLNW cust origin: AS23028 remarks: This is an auto-generated route for a Limelight customer, remarks: created because no matching route-object was found. remarks: Please contact bgp at llnw.com with any questions. mnt-by: MAINT-LLNW changed: ksmart [at] limelightnetworks.com 20090709 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.229.33.0/24 origin: AS23028 descr: Team Cymru 901 International Parkway Suite 350 Lake Mary, FL 32746 US notify: peering [at] cymru.com mnt-by: MAINT-AS23028 changed: peering [at] cymru.com 20210216 #23:37:27Z source: RADB last-modified: 2023-11-13T16:03:38Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.229.252.0/24 origin: AS23028 descr: Team Cymru 901 International Parkway Suite 350 Lake Mary, FL 32746 US notify: peering [at] cymru.com mnt-by: MAINT-AS23028 changed: noc [at] cymru.com 20230821 #17:58:12Z source: RADB last-modified: 2023-11-13T16:18:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.22.187.0/24 origin: AS23028 descr: Team Cymru 901 International Parkway Suite 350 Lake Mary, FL 32746 US admin-c: RTH32-ARIN tech-c: RTH32-ARIN notify: peering [at] cymru.com mnt-by: MAINT-AS23028 changed: noc [at] cymru.com 20200430 #21:21:43Z source: RADB last-modified: 2023-11-13T16:00:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.22.187.0/24 descr: LLNW cust origin: AS23028 remarks: This is an auto-generated route for a Limelight customer, remarks: created because no matching route-object was found. remarks: Please contact bgp at llnw.com with any questions. mnt-by: MAINT-LLNW changed: ksmart [at] limelightnetworks.com 20090814 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.138.226.0/24 descr: LLNW cust origin: AS23028 remarks: This is an auto-generated route for a Limelight customer, remarks: created because no matching route-object was found. remarks: Please contact bgp at llnw.com with any questions. mnt-by: MAINT-LLNW changed: jwillbanks [at] limelightnetworks.com 20090909 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.138.226.0/24 origin: AS23028 descr: Team Cymru 901 International Parkway Suite 350 Lake Mary, FL 32746 US admin-c: RTH32-ARIN tech-c: RTH32-ARIN notify: peering [at] cymru.com mnt-by: MAINT-AS23028 changed: noc [at] cymru.com 20200430 #21:33:00Z source: RADB last-modified: 2023-11-13T16:00:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.28.18.0/24 descr: The University of Queensland (140915) origin: AS23028 remarks: Do not use the notify or changed attribute to report incidents. remarks: Check the inetnum object at the regional registries for contact remarks: information (dereference the admin-c & tech-c attributes). notify: routing [at] connect.com.au mnt-by: MAINT-AS2764 changed: nobody [at] connect.com.au 20050610 source: RADB last-modified: 2023-11-13T16:16:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.28.18.0/24 descr: LLNW cust origin: AS23028 remarks: This is an auto-generated route for a Limelight customer, remarks: created because no matching route-object was found. remarks: Please contact bgp at llnw.com with any questions. mnt-by: MAINT-LLNW changed: jwillbanks [at] limelightnetworks.com 20090909 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.74.64.0/24 origin: AS23028 descr: Team Cymru 901 International Parkway Suite 350 Lake Mary, FL 32746 US member-of: rs-as23028 admin-c: RTH32-ARIN tech-c: RTH32-ARIN notify: peering [at] cymru.com mnt-by: MAINT-AS23028 changed: noc [at] cymru.com 20200430 #21:31:39Z source: RADB last-modified: 2023-11-13T16:00:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.74.64.0/24 descr: LLNW cust origin: AS23028 remarks: This is an auto-generated route for a Limelight customer, remarks: created because no matching route-object was found. remarks: Please contact bgp at llnw.com with any questions. mnt-by: MAINT-LLNW changed: jwillbanks [at] limelightnetworks.com 20090909 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.31.0.0/18 origin: AS23028 descr: Team Cymru 901 International Parkway Suite 350 Lake Mary, FL 32746 US admin-c: RTH32-ARIN tech-c: RTH32-ARIN notify: peering [at] cymru.com mnt-by: MAINT-AS23028 changed: noc [at] cymru.com 20220207 #22:18:56Z source: RADB last-modified: 2023-11-13T16:09:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2604:8800::/32 origin: AS23028 descr: Team Cymru 901 International Parkway Suite 350 Lake Mary, FL 32746 US notify: peering [at] cymru.com mnt-by: MAINT-AS23028 changed: noc [at] cymru.com 20200430 #21:47:38Z source: RADB last-modified: 2023-11-13T16:00:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2604:8800:9::/48 origin: AS23028 descr: Team Cymru 901 International Parkway Suite 350 Lake Mary, FL 32746 US notify: peering [at] cymru.com mnt-by: MAINT-AS23028 changed: peering [at] cymru.com 20200803 #20:53:13Z source: RADB last-modified: 2023-11-13T16:01:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:0:6b0::/48 origin: AS23028 descr: Team Cymru 901 International Parkway Suite 350 Lake Mary, FL 32746 US notify: peering [at] cymru.com mnt-by: MAINT-AS23028 changed: noc [at] cymru.com 20200430 #21:47:09Z source: RADB last-modified: 2023-11-13T16:00:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source