These entries are queried from radb.net using whois, you can try my project getting these.
:AS64053 route: 103.198.168.0/22 descr: Grasp-bd origin: AS64053 mnt-by: MAINT-GRASP-BD last-modified: 2017-03-06T09:59:35Z source: APNIC rpki-ov-state: valid route: 103.198.168.0/23 descr: Grasp1 origin: AS64053 mnt-by: MAINT-GRASP-BD last-modified: 2016-02-09T16:39:35Z source: APNIC rpki-ov-state: valid route: 103.198.168.0/24 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T05:39:39Z source: APNIC rpki-ov-state: valid route: 103.198.169.0/24 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T05:39:43Z source: APNIC rpki-ov-state: valid route: 103.198.170.0/23 descr: Grasp2 origin: AS64053 mnt-by: MAINT-GRASP-BD last-modified: 2016-02-09T16:39:53Z source: APNIC rpki-ov-state: valid route: 103.198.170.0/24 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T05:39:48Z source: APNIC rpki-ov-state: valid route: 103.198.171.0/24 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T05:39:52Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0::/32 descr: Grasp International Limited origin: AS64053 mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T05:45:07Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0::/33 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:01:58Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0::/34 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:01Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0::/35 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:04Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:09Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:1000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:12Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:2000::/35 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:15Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:2000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:17Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:3000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:21Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:4000::/34 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:24Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:4000::/35 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:27Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:4000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:29Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:5000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:32Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:6000::/35 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:35Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:6000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:37Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:7000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:42Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:8000::/33 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:45Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:8000::/34 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:47Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:8000::/35 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:50Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:8000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:53Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:9000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:56Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:a000::/35 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:02:58Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:a000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:03:01Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:b000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:03:04Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:c000::/34 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:03:07Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:c000::/35 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:03:11Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:c000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:03:14Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:d000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:03:17Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:e000::/35 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:03:19Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:e000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:03:21Z source: APNIC rpki-ov-state: valid route6: 2401:f1c0:f000::/36 origin: AS64053 descr: Grasp International Limited Dag-2703, Madani Avenue, Dhaka Metropolitan Housing Society, Ward-40, Vatara, Bangladesh mnt-by: MAINT-GRASP-BD last-modified: 2021-12-17T06:03:24Z source: APNIC rpki-ov-state: valid