These entries are queried from radb.net using whois, you can try my project getting these.
:AS137703 route: 103.113.192.0/22 descr: Noakhali Broadband Network origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2018-08-31T10:52:30Z source: APNIC rpki-ov-state: valid route: 103.113.192.0/23 origin: AS137703 descr: Sohid Uddin Mahmud N.S Plaza, 1st Floor, Boro Mosjid More mnt-by: MAINT-NBN-BD last-modified: 2024-01-05T23:40:39Z source: APNIC rpki-ov-state: valid route: 103.113.192.0/24 descr: Sohid Uddin Mahmud origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2018-04-22T10:26:11Z source: APNIC rpki-ov-state: valid route: 103.113.193.0/24 descr: Triple Play Network origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2021-03-03T14:27:27Z source: APNIC rpki-ov-state: valid route: 103.113.194.0/23 descr: Sohid Uddin Mahmud origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2018-04-22T10:25:52Z source: APNIC rpki-ov-state: valid route: 103.113.194.0/24 descr: Sohid Uddin Mahmud origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2018-04-22T10:26:36Z source: APNIC rpki-ov-state: valid route: 103.113.195.0/24 descr: Sohid Uddin Mahmud origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2018-04-22T10:26:47Z source: APNIC rpki-ov-state: valid route6: 2404:5e40::/32 origin: AS137703 descr: Sohid Uddin Mahmud N.S Plaza, 1st Floor, Boro Mosjid More mnt-by: MAINT-NBN-BD last-modified: 2022-02-28T08:07:54Z source: APNIC rpki-ov-state: valid route6: 2404:5e40::/48 descr: NBN Servers origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2022-05-10T16:51:12Z source: APNIC rpki-ov-state: valid route6: 2404:5e40:1::/48 descr: City Network origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2022-02-28T08:10:27Z source: APNIC rpki-ov-state: valid route6: 2404:5e40:2::/48 descr: NB Network origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2021-04-29T22:13:57Z source: APNIC rpki-ov-state: valid route6: 2404:5e40:3::/48 descr: Raipur origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2022-02-28T08:09:37Z source: APNIC rpki-ov-state: valid route6: 2404:5e40:4::/48 descr: Lakshminarayn Pur origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2022-03-05T13:59:03Z source: APNIC rpki-ov-state: valid route6: 2404:5e40:5::/48 descr: NBN Alexender origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2022-05-10T16:52:45Z source: APNIC rpki-ov-state: valid route6: 2404:5e40:6::/48 descr: Suborno Chor origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2022-02-28T08:18:46Z source: APNIC rpki-ov-state: valid route6: 2404:5e40:7::/48 descr: Friends WiFi origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2022-03-05T13:57:56Z source: APNIC rpki-ov-state: valid route6: 2404:5e40:8::/48 descr: Monohorgonj origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2022-03-11T09:18:25Z source: APNIC rpki-ov-state: valid route6: 2404:5e40:9::/48 descr: Bipulashar origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2022-03-11T15:31:05Z source: APNIC rpki-ov-state: valid route6: 2404:5e40:a::/48 descr: Aggregation 3 origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2024-04-09T15:03:45Z source: APNIC rpki-ov-state: valid route6: 2404:5e40:b::/48 descr: NBN Monohorgonj origin: AS137703 mnt-by: MAINT-NBN-BD last-modified: 2024-04-17T08:35:05Z source: APNIC rpki-ov-state: valid