These entries are queried from radb.net using whois, you can try my project getting these.
:AS136514 route: 103.91.128.0/22 descr: Onesky Communications Limited origin: AS136514 mnt-by: MAINT-ONESKY-BD last-modified: 2017-06-01T10:49:19Z source: APNIC rpki-ov-state: valid route: 103.91.128.0/23 descr: Onesky Communications Limited origin: AS136514 mnt-by: MAINT-ONESKY-BD last-modified: 2017-06-01T10:49:24Z source: APNIC rpki-ov-state: valid route: 103.91.128.0/24 descr: Onesky Communications Limited origin: AS136514 mnt-by: MAINT-ONESKY-BD last-modified: 2017-06-01T10:49:38Z source: APNIC rpki-ov-state: valid route: 103.91.129.0/24 descr: Onesky Communications Limited origin: AS136514 mnt-by: MAINT-ONESKY-BD last-modified: 2017-06-01T10:49:42Z source: APNIC rpki-ov-state: valid route: 103.91.130.0/23 descr: Onesky Communications Limited origin: AS136514 mnt-by: MAINT-ONESKY-BD last-modified: 2017-06-01T10:49:29Z source: APNIC rpki-ov-state: valid route: 103.91.130.0/24 descr: Onesky Communications Limited origin: AS136514 mnt-by: MAINT-ONESKY-BD last-modified: 2017-06-01T10:49:48Z source: APNIC rpki-ov-state: valid route: 103.91.131.0/24 descr: Onesky Communications Limited origin: AS136514 mnt-by: MAINT-ONESKY-BD last-modified: 2017-06-01T10:49:53Z source: APNIC rpki-ov-state: valid route: 123.253.36.0/22 origin: AS136514 descr: Rashedur Rahman S.A Bhaban (4th floor), 115/23 Motijheel Circular Road Dhaka-1000, Bangladesh mnt-by: MAINT-ONESKY-BD last-modified: 2019-07-06T08:50:28Z source: APNIC rpki-ov-state: valid route: 123.253.36.0/23 origin: AS136514 descr: Rashedur Rahman S.A Bhaban (4th floor), 115/23 Motijheel Circular Road Dhaka-1000, Bangladesh mnt-by: MAINT-ONESKY-BD last-modified: 2019-07-06T08:50:28Z source: APNIC rpki-ov-state: valid route: 123.253.36.0/24 origin: AS136514 descr: Rashedur Rahman S.A Bhaban (4th floor), 115/23 Motijheel Circular Road Dhaka-1000, Bangladesh mnt-by: MAINT-ONESKY-BD last-modified: 2019-07-06T08:50:29Z source: APNIC rpki-ov-state: valid route: 123.253.37.0/24 origin: AS136514 descr: Rashedur Rahman S.A Bhaban (4th floor), 115/23 Motijheel Circular Road Dhaka-1000, Bangladesh mnt-by: MAINT-ONESKY-BD last-modified: 2019-07-06T08:50:29Z source: APNIC rpki-ov-state: valid route: 123.253.38.0/23 origin: AS136514 descr: Rashedur Rahman S.A Bhaban (4th floor), 115/23 Motijheel Circular Road Dhaka-1000, Bangladesh mnt-by: MAINT-ONESKY-BD last-modified: 2019-07-06T08:50:29Z source: APNIC rpki-ov-state: valid route: 123.253.38.0/24 origin: AS136514 descr: Rashedur Rahman S.A Bhaban (4th floor), 115/23 Motijheel Circular Road Dhaka-1000, Bangladesh mnt-by: MAINT-ONESKY-BD last-modified: 2019-07-06T08:50:30Z source: APNIC rpki-ov-state: valid route: 123.253.39.0/24 origin: AS136514 descr: Rashedur Rahman S.A Bhaban (4th floor), 115/23 Motijheel Circular Road Dhaka-1000, Bangladesh mnt-by: MAINT-ONESKY-BD last-modified: 2019-07-06T08:50:30Z source: APNIC rpki-ov-state: valid route6: 2401:6c0::/32 descr: ipv6 origin: AS136514 mnt-by: MAINT-ONESKY-BD last-modified: 2018-11-23T09:04:57Z source: APNIC rpki-ov-state: valid