These entries are queried from radb.net using whois, you can try my project getting these.
:AS137964 route: 103.76.194.0/24 origin: AS137964 descr: Next Gen Online mnt-by: MAINT-LIKEONLINE-BD last-modified: 2023-12-31T13:18:01Z source: APNIC rpki-ov-state: valid route: 103.118.152.0/23 descr: Route Object for 103.118.152.0/23 descr: Next Gen Online origin: AS137964 mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2020-04-16T21:23:47Z mnt-routes: MAINT-NEXTGENONLINE-BD source: APNIC rpki-ov-state: valid route: 103.118.152.0/24 descr: Route Object for 103.118.152.0/24 descr: Next Gen Online origin: AS137964 mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2020-04-16T16:44:51Z source: APNIC rpki-ov-state: valid route: 103.118.153.0/24 descr: Route Object for 103.118.153.0/24 descr: Next Gen Online origin: AS137964 mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2020-04-16T16:47:41Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00::/48 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-05-24T15:40:10Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T08:50:07Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:1000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T08:51:00Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:2000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T08:57:22Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:3000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T08:57:57Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:4000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T08:58:28Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:5000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T08:59:00Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:6000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T08:59:52Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:7000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T09:00:49Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:8000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T09:01:28Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:9000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T09:01:55Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:a000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T09:02:22Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:b000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T09:02:49Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:c000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T09:03:20Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:d000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T09:03:50Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:e000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T09:04:31Z source: APNIC rpki-ov-state: valid route6: 2001:df5:cf00:f000::/52 origin: AS137964 descr: Nadim Hossan Babu 302, Hazi Tower, Jurain Gandaria New Rd, Dhaka Bangladesh mnt-by: MAINT-NEXTGENONLINE-BD last-modified: 2021-07-13T09:04:57Z source: APNIC rpki-ov-state: valid