These entries are queried from radb.net using whois, you can try my project getting these.
:AS23876 route: 103.110.212.0/23 origin: AS23876 descr: Bangladesh Telegraph & Telephone Board Telejogajog Bhaban 37/E, Eskaton Garden mnt-by: MAINT-BD-BTTB last-modified: 2022-02-07T08:41:37Z source: APNIC rpki-ov-state: valid route: 103.110.212.0/24 origin: AS23876 descr: Bangladesh Telegraph & Telephone Board Telejogajog Bhaban 37/E, Eskaton Garden mnt-by: MAINT-BD-BTTB last-modified: 2022-02-07T08:41:45Z source: APNIC rpki-ov-state: valid route: 103.110.213.0/24 origin: AS23876 descr: Bangladesh Telegraph & Telephone Board Telejogajog Bhaban 37/E, Eskaton Garden mnt-by: MAINT-BD-BTTB last-modified: 2022-02-07T08:41:52Z source: APNIC rpki-ov-state: valid route: 123.49.43.0/24 origin: AS23876 descr: Bangladesh Telegraph & Telephone Board Telejogajog Bhaban 37/E, Eskaton Garden mnt-by: MAINT-BD-BTTB last-modified: 2018-05-15T15:32:59Z source: APNIC rpki-ov-state: valid route: 218.100.37.0/24 origin: AS23876 descr: Bangladesh Telegraph & Telephone Board Telejogajog Bhaban 37/E, Eskaton Garden mnt-by: MAINT-BD-BDNIX last-modified: 2018-05-16T01:13:25Z source: APNIC rpki-ov-state: valid