These entries are queried from radb.net using whois, you can try my project getting these.
:AS135881 route: 43.230.210.0/23 descr: Spark Net origin: AS135881 mnt-by: MAINT-SPARKNET-BD last-modified: 2018-03-09T18:36:23Z source: APNIC rpki-ov-state: valid route: 43.230.210.0/24 descr: Spark Net origin: AS135881 mnt-by: MAINT-SPARKNET-BD last-modified: 2018-03-09T18:36:27Z source: APNIC rpki-ov-state: valid route: 43.230.211.0/24 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2023-11-23T14:17:34Z source: APNIC rpki-ov-state: valid route: 103.78.224.0/22 descr: Spark Net origin: AS135881 mnt-by: MAINT-SPARKNET-BD last-modified: 2016-11-14T06:11:41Z source: APNIC rpki-ov-state: valid route: 103.78.224.0/23 descr: Spark Net origin: AS135881 mnt-by: MAINT-SPARKNET-BD last-modified: 2016-11-14T06:11:49Z source: APNIC rpki-ov-state: valid route: 103.78.224.0/24 descr: Spark Net origin: AS135881 mnt-by: MAINT-SPARKNET-BD last-modified: 2016-11-14T06:11:56Z source: APNIC rpki-ov-state: valid route: 103.78.225.0/24 descr: Spark Net origin: AS135881 mnt-by: MAINT-SPARKNET-BD last-modified: 2016-11-14T06:12:01Z source: APNIC rpki-ov-state: valid route: 103.78.226.0/23 descr: Spark Net origin: AS135881 mnt-by: MAINT-SPARKNET-BD last-modified: 2016-11-14T06:12:21Z source: APNIC rpki-ov-state: valid route: 103.78.226.0/24 descr: Spark Net origin: AS135881 mnt-by: MAINT-SPARKNET-BD last-modified: 2016-11-14T06:12:06Z source: APNIC rpki-ov-state: valid route: 103.78.227.0/24 descr: Spark Net origin: AS135881 mnt-by: MAINT-SPARKNET-BD last-modified: 2016-11-14T06:12:12Z source: APNIC rpki-ov-state: valid route6: 2407:ff80::/32 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:44Z source: APNIC rpki-ov-state: valid route6: 2407:ff80::/33 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:45Z source: APNIC rpki-ov-state: valid route6: 2407:ff80::/34 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:45Z source: APNIC rpki-ov-state: valid route6: 2407:ff80::/35 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:46Z source: APNIC rpki-ov-state: valid route6: 2407:ff80::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:47Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:1000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:47Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:2000::/35 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:48Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:2000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:49Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:3000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:49Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:4000::/34 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:50Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:4000::/35 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:51Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:4000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:51Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:5000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:52Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:6000::/35 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:53Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:6000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:53Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:7000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:54Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:8000::/33 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:54Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:8000::/34 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:55Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:8000::/35 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:56Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:8000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:56Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:9000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:57Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:a000::/35 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:58Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:a000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:58Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:b000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:22:59Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:c000::/34 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:23:00Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:c000::/35 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:23:00Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:c000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:23:01Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:d000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:23:02Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:e000::/35 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:23:02Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:e000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:23:03Z source: APNIC rpki-ov-state: valid route6: 2407:ff80:f000::/36 origin: AS135881 descr: Md Abul Kashem 474 Kazipara, Mirpur mnt-by: MAINT-SPARKNET-BD last-modified: 2020-02-06T08:23:03Z source: APNIC rpki-ov-state: valid