These entries are queried from radb.net using whois, you can try my project getting these.
:AS58752 route: 43.245.232.0/22 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-BD last-modified: 2021-12-08T09:09:20Z source: APNIC rpki-ov-state: valid route: 43.245.232.0/23 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-BD last-modified: 2021-12-08T09:09:26Z source: APNIC rpki-ov-state: valid route: 43.245.232.0/24 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-BD last-modified: 2021-12-08T09:09:32Z source: APNIC rpki-ov-state: valid route: 43.245.233.0/24 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-BD last-modified: 2021-12-08T09:09:38Z source: APNIC rpki-ov-state: valid route: 43.245.234.0/23 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-BD last-modified: 2021-12-08T09:09:43Z source: APNIC rpki-ov-state: valid route: 43.245.234.0/24 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-BD last-modified: 2021-12-08T09:09:49Z source: APNIC rpki-ov-state: valid route: 43.245.235.0/24 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-BD last-modified: 2021-12-08T09:09:55Z source: APNIC rpki-ov-state: valid route: 103.31.176.0/23 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-IIG-BD last-modified: 2022-01-26T06:27:55Z source: APNIC rpki-ov-state: valid route: 103.31.176.0/24 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-IIG-BD last-modified: 2022-01-26T06:27:58Z source: APNIC rpki-ov-state: valid route: 103.31.177.0/24 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-IIG-BD last-modified: 2022-01-26T06:28:00Z source: APNIC rpki-ov-state: valid route6: 2407:1500::/32 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-IIG-BD last-modified: 2022-01-16T12:46:15Z source: APNIC rpki-ov-state: valid route6: 2407:1500:20::/48 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-IIG-BD last-modified: 2022-01-16T12:51:10Z source: APNIC rpki-ov-state: valid route6: 2407:1500:21::/48 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-IIG-BD last-modified: 2022-10-25T07:24:20Z source: APNIC rpki-ov-state: valid route6: 2407:1500:22::/48 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-IIG-BD last-modified: 2023-08-23T07:47:40Z source: APNIC rpki-ov-state: valid route6: 2407:1500:23::/48 origin: AS58752 descr: Delta Infocom Limited Nandani, House#58/cha/1, West RajaBazar, Panthapath, mnt-by: MAINT-DELTA-IIG-BD last-modified: 2023-08-23T07:47:14Z source: APNIC rpki-ov-state: valid