These entries are queried from radb.net using whois, you can try my project getting these.
:AS138385 route: 103.124.52.0/22 origin: AS138385 descr: Chittagong Data Communication mnt-by: MAINT-CDC-BD last-modified: 2024-01-18T09:19:06Z country: BD mnt-routes: MAINT-CDC-BD mnt-lower: MAINT-CDC-BD source: APNIC rpki-ov-state: valid route: 103.124.52.0/23 origin: AS138385 descr: Chittagong Data Communication mnt-by: MAINT-CDC-BD last-modified: 2024-01-18T09:19:26Z country: BD mnt-routes: MAINT-CDC-BD mnt-lower: MAINT-CDC-BD source: APNIC rpki-ov-state: valid route: 103.124.52.0/24 origin: AS138385 descr: Chittagong Data Communication mnt-by: MAINT-CDC-BD last-modified: 2024-01-18T09:19:47Z country: BD mnt-routes: MAINT-CDC-BD mnt-lower: MAINT-CDC-BD source: APNIC rpki-ov-state: valid route: 103.124.54.0/23 origin: AS138385 descr: Chittagong Data Communication mnt-by: MAINT-CDC-BD last-modified: 2024-01-18T09:17:10Z country: BD mnt-routes: MAINT-CDC-BD mnt-lower: MAINT-CDC-BD source: APNIC rpki-ov-state: valid route: 103.124.54.0/24 origin: AS138385 descr: Chittagong Data Communication mnt-by: MAINT-CDC-BD last-modified: 2024-01-18T09:17:37Z country: BD mnt-routes: MAINT-CDC-BD mnt-lower: MAINT-CDC-BD source: APNIC rpki-ov-state: valid route: 103.124.55.0/24 origin: AS138385 descr: Chittagong Data Communication mnt-by: MAINT-CDC-BD last-modified: 2024-01-18T09:18:02Z country: BD mnt-routes: MAINT-CDC-BD mnt-lower: MAINT-CDC-BD source: APNIC rpki-ov-state: valid route: 103.134.37.0/24 origin: AS138385 descr: Chittagong Data Communication mnt-by: MAINT-INTERNETFACTORY-BD last-modified: 2022-01-19T06:58:40Z country: BD mnt-routes: MAINT-INTERNETFACTORY-BD mnt-lower: MAINT-INTERNETFACTORY-BD source: APNIC rpki-ov-state: valid route6: 2403:da40::/32 descr: Chittagong Data Communication Limited origin: AS138385 mnt-by: MAINT-CDC-BD country: BD mnt-routes: MAINT-CDC-BD mnt-lower: MAINT-CDC-BD last-modified: 2020-09-12T17:37:08Z source: APNIC rpki-ov-state: valid route6: 2403:da40::/33 origin: AS138385 descr: Shane Gonsalves Shop 17, 1st Floor, Apollo Shopping Center, Kazi Dewri mnt-by: MAINT-CDC-BD last-modified: 2020-12-23T15:11:38Z source: APNIC rpki-ov-state: valid route6: 2403:da40:100::/40 origin: AS138385 descr: Chittagong Data Communication mnt-by: MAINT-CDC-BD last-modified: 2021-08-06T14:58:18Z source: APNIC rpki-ov-state: valid route6: 2403:da40:102::/48 origin: AS138385 descr: Shane Gonsalves Shop 17, 1st Floor, Apollo Shopping Center, Kazi Dewri mnt-by: MAINT-CDC-BD last-modified: 2021-01-07T12:09:12Z source: APNIC rpki-ov-state: valid route6: 2403:da40:103::/48 origin: AS138385 descr: Shane Gonsalves Shop 17, 1st Floor, Apollo Shopping Center, Kazi Dewri mnt-by: MAINT-CDC-BD last-modified: 2021-01-07T12:08:55Z source: APNIC rpki-ov-state: valid route6: 2403:da40:8000::/33 origin: AS138385 descr: Shane Gonsalves Shop 17, 1st Floor, Apollo Shopping Center, Kazi Dewri mnt-by: MAINT-CDC-BD last-modified: 2020-12-23T15:12:04Z source: APNIC rpki-ov-state: valid