These entries are queried from radb.net using whois, you can try my project getting these.
:AS137541 route: 103.112.148.0/22 descr: CMI (Customer Route) origin: AS137541 mnt-by: MAINT-AS58453 changed: qas_support [at] cmi.chinamobile.com 20200922 source: RADB last-modified: 2023-11-13T16:01:53Z rpki-ov-state: valid route: 103.112.148.0/22 origin: AS137541 descr: Royalnet mnt-by: MAINT-ROYALNET-BD last-modified: 2020-12-23T12:26:27Z source: APNIC rpki-ov-state: valid route: 103.112.148.0/22 descr: CMI IP Transit origin: AS137541 mnt-by: MAINT-CMI-INT-HK changed: qas_support [at] cmi.chinamobile.com 20200922 source: NTTCOM rpki-ov-state: valid route: 103.112.148.0/23 origin: AS137541 descr: Royalnet mnt-by: MAINT-ROYALNET-BD last-modified: 2020-12-23T12:28:18Z source: APNIC rpki-ov-state: valid route: 103.112.148.0/24 origin: AS137541 descr: Royalnet mnt-by: MAINT-ROYALNET-BD last-modified: 2020-12-23T12:28:04Z source: APNIC rpki-ov-state: valid route: 103.112.149.0/24 origin: AS137541 descr: Royalnet mnt-by: MAINT-ROYALNET-BD last-modified: 2020-12-23T12:28:40Z source: APNIC rpki-ov-state: valid route: 103.112.150.0/23 origin: AS137541 descr: Royalnet mnt-by: MAINT-ROYALNET-BD last-modified: 2020-12-23T12:29:06Z source: APNIC rpki-ov-state: valid route: 103.112.150.0/24 origin: AS137541 descr: Royalnet mnt-by: MAINT-ROYALNET-BD last-modified: 2020-12-23T12:28:53Z source: APNIC rpki-ov-state: valid route: 103.112.151.0/24 origin: AS137541 descr: Royalnet mnt-by: MAINT-ROYALNET-BD last-modified: 2020-12-23T12:29:19Z source: APNIC rpki-ov-state: valid route6: 2402:ab40::/32 descr: Route object for 2402:ab40::/32 country: BD origin: AS137541 mnt-by: MAINT-ROYALNET-BD last-modified: 2021-08-06T19:39:32Z source: APNIC rpki-ov-state: valid route6: 2402:ab40::/48 origin: AS137541 descr: Sheikh Sazzad Hossain 18, Jessore Road, Khulna-9100 mnt-by: MAINT-ROYALNET-BD last-modified: 2021-08-08T17:59:48Z source: APNIC rpki-ov-state: valid route6: 2402:ab40:f00::/40 origin: AS137541 descr: Royalnet mnt-by: MAINT-ROYALNET-BD last-modified: 2021-08-08T17:56:10Z country: BD source: APNIC rpki-ov-state: valid route6: 2402:ab40:1000::/48 origin: AS137541 descr: Royalnet mnt-by: MAINT-ROYALNET-BD last-modified: 2021-08-08T18:07:37Z country: BD source: APNIC rpki-ov-state: valid