These entries are queried from radb.net using whois, you can try my project getting these.
:AS45282 route: 123.176.56.0/22 descr: Mir Telecom origin: AS45282 mnt-by: MAINT-MIRTELECOM-BD last-modified: 2010-02-13T06:31:00Z source: APNIC rpki-ov-state: valid route: 123.176.56.0/24 descr: route object vsat origin: AS45282 mnt-by: MAINT-MIRTELECOM-BD last-modified: 2010-03-18T05:49:50Z source: APNIC rpki-ov-state: valid route: 123.176.57.0/24 descr: Mir Telecom origin: AS45282 mnt-by: MAINT-MIRTELECOM-BD last-modified: 2010-05-11T09:21:44Z source: APNIC rpki-ov-state: valid route: 123.176.58.0/24 descr: Primarily Advertised through Bharti origin: AS45282 country: BD mnt-lower: MAINT-MIRTELECOM-BD mnt-routes: MAINT-MIRTELECOM-BD mnt-by: MAINT-MIRTELECOM-BD last-modified: 2011-03-25T09:02:25Z source: APNIC rpki-ov-state: valid route: 123.176.59.0/24 origin: AS45282 descr: Mir Telecom Mir Tel Group Corporate House, House- 04, Road- 21, Gulshan-1, Dhaka-1212, Bangladesh mnt-by: MAINT-MIRTELECOM-BD last-modified: 2019-10-21T16:24:31Z source: APNIC rpki-ov-state: valid route: 202.129.192.0/22 descr: Help to reroute if any /24 link is down origin: AS45282 country: BD mnt-lower: MAINT-MIRTELECOM-BD mnt-routes: MAINT-MIRTELECOM-BD mnt-by: MAINT-MIRTELECOM-BD last-modified: 2016-04-10T08:58:34Z source: APNIC rpki-ov-state: valid route: 202.129.192.0/24 descr: Mir Telecom Ltd. origin: AS45282 country: BD mnt-lower: MAINT-MIRTELECOM-BD mnt-routes: MAINT-MIRTELECOM-BD mnt-by: MAINT-MIRTELECOM-BD last-modified: 2011-06-28T08:54:20Z source: APNIC rpki-ov-state: valid route: 202.129.193.0/24 descr: Mir Telecom Ltd. origin: AS45282 country: BD mnt-lower: MAINT-MIRTELECOM-BD mnt-routes: MAINT-MIRTELECOM-BD mnt-by: MAINT-MIRTELECOM-BD last-modified: 2011-06-28T08:57:19Z source: APNIC rpki-ov-state: valid route: 202.129.194.0/24 descr: Advertise through STiX, Singapore origin: AS45282 country: BD mnt-lower: MAINT-MIRTELECOM-BD mnt-routes: MAINT-MIRTELECOM-BD mnt-by: MAINT-MIRTELECOM-BD last-modified: 2011-06-28T08:59:14Z source: APNIC rpki-ov-state: valid route: 202.129.195.0/24 descr: Advertised Through Epsilon UK origin: AS45282 country: BD mnt-lower: MAINT-MIRTELECOM-BD mnt-routes: MAINT-MIRTELECOM-BD mnt-by: MAINT-MIRTELECOM-BD last-modified: 2011-06-28T08:58:23Z source: APNIC rpki-ov-state: valid