These entries are queried from radb.net using whois, you can try my project getting these.
:AS139883 route: 61.16.51.0/24 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road #03-02 Singapore 567714 origin: AS139883 mnt-by: MAINT-AS23856 changed: iskandar.basman [at] sptel.com 20201012 #00:25:11Z source: RADB last-modified: 2023-11-13T16:02:24Z rpki-ov-state: valid route: 61.16.51.0/24 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road, #03-02 mnt-by: MAINT-SPTEL-SG last-modified: 2020-10-10T15:53:31Z source: APNIC rpki-ov-state: valid route: 61.16.52.0/24 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road, #03-02 mnt-by: MAINT-SPTEL-SG last-modified: 2020-05-14T09:19:14Z source: APNIC rpki-ov-state: valid route: 61.16.55.0/24 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road #03-02 Singapore 567714 mnt-by: MAINT-AS23856 changed: iskandar.basman [at] sptel.com 20220519 #01:21:52Z source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: valid route: 61.16.55.0/24 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road, #03-02 mnt-by: MAINT-SPTEL-SG last-modified: 2022-05-20T01:27:03Z source: APNIC rpki-ov-state: valid route: 61.16.101.0/24 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road, #03-02 mnt-by: MAINT-SPTEL-SG last-modified: 2020-08-03T04:06:10Z source: APNIC rpki-ov-state: valid route: 61.16.101.0/24 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road #03-02 Singapore 567714 mnt-by: MAINT-AS23856 changed: iskandar.basman [at] sptel.com 20200802 #03:54:19Z source: RADB last-modified: 2023-11-13T16:01:17Z rpki-ov-state: valid route: 61.16.105.0/24 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road #03-02 Singapore 567714 mnt-by: MAINT-AS23856 changed: iskandar.basman [at] sptel.com 20201028 #03:36:39Z source: RADB last-modified: 2023-11-13T16:02:41Z rpki-ov-state: valid route: 61.16.105.0/24 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road, #03-02 mnt-by: MAINT-SPTEL-SG last-modified: 2020-10-30T01:43:59Z source: APNIC rpki-ov-state: valid route: 61.16.110.0/24 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road #03-02 Singapore 567714 mnt-by: MAINT-AS23856 changed: iskandar.basman [at] sptel.com 20210913 #02:32:06Z source: RADB last-modified: 2023-11-13T16:08:13Z rpki-ov-state: valid route: 61.16.110.0/24 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road, #03-02 mnt-by: MAINT-SPTEL-SG last-modified: 2022-04-06T01:36:14Z source: APNIC rpki-ov-state: valid route: 61.16.119.0/24 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road, #03-02 mnt-by: MAINT-SPTEL-SG last-modified: 2022-05-20T01:26:26Z source: APNIC rpki-ov-state: valid route: 166.120.128.0/24 origin: AS139883 descr: Proxy registered route object. Westpac Banking Corporation asiatechnetworksupport [at] westpac.com.au mnt-by: MAINT-AS23856 changed: iskandar.basman [at] sptel.com 20200802 #08:01:08Z source: RADB last-modified: 2023-11-13T16:01:17Z rpki-ov-state: valid route: 166.120.128.0/24 descr: Westpac Banking Corporation 12 Marina View, #27-01, Asia Square Tower 2, Singapore 018961 country: SG origin: AS139883 mnt-by: MAINT-WESTPAC-AU last-modified: 2023-09-27T01:29:23Z source: APNIC rpki-ov-state: valid route6: 2407:9880:8101::/48 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road #03-02 Singapore 567714 mnt-by: MAINT-AS23856 changed: iskandar.basman [at] sptel.com 20201028 #03:37:28Z source: RADB last-modified: 2023-11-13T16:02:41Z rpki-ov-state: valid route6: 2407:9880:8101::/48 origin: AS139883 descr: SPTEL PTE. LTD. 3 Ang Mo Kio Electronics Park Road, #03-02 mnt-by: MAINT-SPTEL-SG last-modified: 2020-10-30T01:44:17Z source: APNIC rpki-ov-state: valid