These entries are queried from radb.net using whois, you can try my project getting these.
:AS397343 route: 138.43.248.0/22 origin: AS397343 descr: SALT Technology Group 10 Market St, Suite 230 Camana Bay Grand Cayman KY1-9006 Cayman Islands admin-c: ADMIN7001-ARIN tech-c: ADMIN7001-ARIN tech-c: ECI6-ARIN mnt-by: MNT-STG-122 created: 2020-10-06T14:29:39Z last-modified: 2024-03-20T17:01:23Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.43.248.0/22 origin: AS397343 descr: Salt Technology Group 10 Market St, Suite 230 Camana Bay, Cayman Islands KY1-9006 mnt-by: MAINT-AS397343 changed: phil.benner [at] salt.ky 20190429 #17:20:19Z source: RADB last-modified: 2023-11-13T15:56:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.43.248.0/24 origin: AS397343 descr: SALT Technology Group 171A Cricket Ave | the Pavilion GeorgeTown, Grand Cayman mnt-by: MAINT-AS397343 changed: phil.benner [at] salt.ky 20201201 #14:55:36Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.43.248.0/24 origin: AS397343 descr: The Pavilion, Cricket Square 171A Elgin Ave. Georgetown Grand Cayman KY1-9006 Cayman Islands admin-c: ADMIN7001-ARIN tech-c: ADMIN7001-ARIN tech-c: ECI6-ARIN mnt-by: MNT-STG-122 created: 2020-12-01T15:04:43Z last-modified: 2024-03-20T17:01:23Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.43.249.0/24 origin: AS397343 descr: SALT Technology Group 171A Cricket Square | The Pavilion GeorgeTown, Grand Cayman mnt-by: MAINT-AS397343 changed: phil.benner [at] salt.ky 20201201 #14:58:03Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.43.249.0/24 origin: AS397343 descr: The Pavilion, Cricket Square 171A Elgin Ave. Georgetown Grand Cayman KY1-9006 Cayman Islands admin-c: ADMIN7001-ARIN tech-c: ADMIN7001-ARIN tech-c: ECI6-ARIN mnt-by: MNT-STG-122 created: 2020-12-01T15:05:34Z last-modified: 2024-03-20T17:01:23Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.43.250.0/24 origin: AS397343 descr: The Pavilion, Cricket Square 171A Elgin Ave. Georgetown Grand Cayman KY1-9006 Cayman Islands admin-c: ADMIN7001-ARIN tech-c: ADMIN7001-ARIN tech-c: ECI6-ARIN mnt-by: MNT-STG-122 created: 2020-12-01T15:06:07Z last-modified: 2024-03-20T17:01:23Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.43.250.0/24 origin: AS397343 descr: SALT Technology Group 171A Cricket Square | The Pavilion GeorgeTown, Grand Cayman mnt-by: MAINT-AS397343 changed: phil.benner [at] salt.ky 20201201 #14:59:03Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.43.251.0/24 origin: AS397343 descr: SALT Technology Group 171A Cricket Square | The Pavilion GeorgeTown, Grand Cayman mnt-by: MAINT-AS397343 changed: phil.benner [at] salt.ky 20201201 #14:59:55Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.43.251.0/24 origin: AS397343 descr: The Pavilion, Cricket Square 171A Elgin Ave. Georgetown Grand Cayman KY1-9006 Cayman Islands admin-c: ADMIN7001-ARIN tech-c: ADMIN7001-ARIN tech-c: ECI6-ARIN mnt-by: MNT-STG-122 created: 2020-12-01T15:06:32Z last-modified: 2024-03-20T17:01:23Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source