These entries are queried from radb.net using whois, you can try my project getting these.
:AS138489 route: 103.126.108.0/22 origin: AS138489 descr: Mawlana Bhashani Science and Technology University Santosh, Tangail-1902, Bangladesh. mnt-by: MAINT-MBSTU-BD last-modified: 2019-01-22T07:46:47Z source: APNIC rpki-ov-state: valid route: 103.126.108.0/23 origin: AS138489 descr: Mawlana Bhashani Science and Technology University Santosh, Tangail-1902, Bangladesh. mnt-by: MAINT-MBSTU-BD last-modified: 2019-01-22T07:46:48Z source: APNIC rpki-ov-state: valid route: 103.126.108.0/24 origin: AS138489 descr: Mawlana Bhashani Science and Technology University Santosh, Tangail-1902, Bangladesh. mnt-by: MAINT-MBSTU-BD last-modified: 2019-01-22T07:46:48Z source: APNIC rpki-ov-state: valid route: 103.126.109.0/24 origin: AS138489 descr: Mawlana Bhashani Science and Technology University Santosh, Tangail-1902, Bangladesh. mnt-by: MAINT-MBSTU-BD last-modified: 2019-01-22T07:46:49Z source: APNIC rpki-ov-state: valid route: 103.126.110.0/23 origin: AS138489 descr: Mawlana Bhashani Science and Technology University Santosh, Tangail-1902, Bangladesh. mnt-by: MAINT-MBSTU-BD last-modified: 2019-01-22T07:46:49Z source: APNIC rpki-ov-state: valid route: 103.126.110.0/24 origin: AS138489 descr: Mawlana Bhashani Science and Technology University Santosh, Tangail-1902, Bangladesh. mnt-by: MAINT-MBSTU-BD last-modified: 2019-01-22T07:46:50Z source: APNIC rpki-ov-state: valid route: 103.126.111.0/24 origin: AS138489 descr: Mawlana Bhashani Science and Technology University Santosh, Tangail-1902, Bangladesh. mnt-by: MAINT-MBSTU-BD last-modified: 2019-01-22T07:46:51Z source: APNIC rpki-ov-state: valid