These entries are queried from radb.net using whois, you can try my project getting these.
:AS136428 route: 103.172.14.0/23 origin: AS136428 descr: Ajajur Roshid House#42, Road#4, Block#B, Section-13, Mirpur mnt-by: MAINT-WEB1-BD last-modified: 2021-08-21T16:55:37Z country: BD mnt-routes: MAINT-WEB1-BD mnt-lower: MAINT-WEB1-BD source: APNIC rpki-ov-state: valid route: 103.172.14.0/24 origin: AS136428 descr: Ajajur Roshid House#42, Road#4, Block#B, Section-13, Mirpur mnt-by: MAINT-WEB1-BD last-modified: 2021-08-21T16:56:32Z country: BD mnt-routes: MAINT-WEB1-BD mnt-lower: MAINT-WEB1-BD source: APNIC rpki-ov-state: valid route: 103.172.15.0/24 origin: AS136428 descr: Ajajur Roshid House#42, Road#4, Block#B, Section-13, Mirpur mnt-by: MAINT-WEB1-BD last-modified: 2021-09-01T16:47:09Z country: BD mnt-lower: MAINT-WEB1-BD mnt-routes: MAINT-WEB1-BD source: APNIC rpki-ov-state: valid route6: 2001:df7:5b80::/48 origin: AS136428 descr: Ajajur Roshid House#42, Road#4, Block#B, Section-13, Mirpur mnt-by: MAINT-WEB1-BD last-modified: 2021-08-21T16:54:31Z source: APNIC rpki-ov-state: valid