These entries are queried from radb.net using whois, you can try my project getting these.
:AS137991 route: 45.121.188.0/22 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan, #04-07B, New Tech Park mnt-by: MAINT-LIFEWAY-SG last-modified: 2022-01-19T07:15:41Z source: APNIC rpki-ov-state: valid route: 45.121.188.0/22 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: ryan [at] lws.network 20220119 #07:31:55Z source: RADB last-modified: 2023-11-13T16:09:08Z rpki-ov-state: valid route: 45.121.188.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan, #04-07B, New Tech Park mnt-by: MAINT-LIFEWAY-SG last-modified: 2022-01-19T07:16:44Z source: APNIC rpki-ov-state: valid route: 45.121.188.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: ryan [at] lws.network 20220119 #07:32:33Z source: RADB last-modified: 2023-11-13T16:09:08Z rpki-ov-state: valid route: 45.121.189.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: ryan [at] lws.network 20220119 #07:33:01Z source: RADB last-modified: 2023-11-13T16:09:08Z rpki-ov-state: valid route: 45.121.189.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan, #04-07B, New Tech Park mnt-by: MAINT-LIFEWAY-SG last-modified: 2022-01-19T07:18:09Z source: APNIC rpki-ov-state: valid route: 45.121.190.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan, #04-07B, New Tech Park mnt-by: MAINT-LIFEWAY-SG last-modified: 2022-01-19T07:18:26Z source: APNIC rpki-ov-state: valid route: 45.121.190.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: ryan [at] lws.network 20220119 #07:33:31Z source: RADB last-modified: 2023-11-13T16:09:08Z rpki-ov-state: valid route: 45.121.191.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: ryan [at] lws.network 20220119 #07:33:57Z source: RADB last-modified: 2023-11-13T16:09:08Z rpki-ov-state: valid route: 45.121.191.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan, #04-07B, New Tech Park mnt-by: MAINT-LIFEWAY-SG last-modified: 2022-01-19T07:18:38Z source: APNIC rpki-ov-state: valid route: 103.119.148.0/22 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan #04-07B, New Tech Park Singapore 556741 mnt-by: MAINT-LIFEWAY-SG last-modified: 2021-08-18T07:09:46Z source: APNIC rpki-ov-state: valid route: 103.119.148.0/22 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201019 #06:50:41Z source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: valid route: 103.119.148.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan #04-07B, New Tech Park Singapore 556741 mnt-by: MAINT-LIFEWAY-SG last-modified: 2021-08-18T07:09:02Z source: APNIC rpki-ov-state: valid route: 103.119.148.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201019 #06:54:23Z source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: valid route: 103.119.149.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201019 #06:55:46Z source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: valid route: 103.119.149.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan #04-07B, New Tech Park Singapore 556741 mnt-by: MAINT-LIFEWAY-SG last-modified: 2021-08-18T07:10:04Z source: APNIC rpki-ov-state: valid route: 103.119.150.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan #04-07B, New Tech Park Singapore 556741 mnt-by: MAINT-LIFEWAY-SG last-modified: 2021-08-18T07:10:18Z source: APNIC rpki-ov-state: valid route: 103.119.150.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201019 #06:56:22Z source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: valid route: 103.119.151.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201019 #06:56:55Z source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: valid route: 103.119.151.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan #04-07B, New Tech Park Singapore 556741 mnt-by: MAINT-LIFEWAY-SG last-modified: 2021-08-18T07:10:29Z source: APNIC rpki-ov-state: valid route: 203.1.22.0/23 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan #04-07B, New Tech Park Singapore 556741 mnt-by: MAINT-LIFEWAY-SG last-modified: 2021-08-18T07:11:16Z source: APNIC rpki-ov-state: valid route: 203.1.22.0/23 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201130 #01:22:11Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: valid route: 203.1.22.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan #04-07B, New Tech Park Singapore 556741 mnt-by: MAINT-LIFEWAY-SG last-modified: 2021-08-18T07:11:26Z source: APNIC rpki-ov-state: valid route: 203.1.22.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201130 #01:17:32Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: valid route: 203.1.23.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201130 #01:18:25Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: valid route: 203.1.23.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan #04-07B, New Tech Park Singapore 556741 mnt-by: MAINT-LIFEWAY-SG last-modified: 2021-08-18T07:11:33Z source: APNIC rpki-ov-state: valid route: 203.10.100.0/23 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan #04-07B, New Tech Park Singapore 556741 mnt-by: MAINT-LIFEWAY-SG last-modified: 2021-08-18T07:11:55Z source: APNIC rpki-ov-state: valid route: 203.10.100.0/23 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201130 #01:22:44Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: valid route: 203.10.100.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan #04-07B, New Tech Park Singapore 556741 mnt-by: MAINT-LIFEWAY-SG last-modified: 2021-08-18T07:12:12Z source: APNIC rpki-ov-state: valid route: 203.10.100.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201130 #01:15:40Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: valid route: 203.10.101.0/24 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 151 Lorong Chuan #04-07B, New Tech Park Singapore 556741 mnt-by: MAINT-LIFEWAY-SG last-modified: 2021-08-18T07:12:21Z source: APNIC rpki-ov-state: valid route: 203.10.101.0/24 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201130 #01:16:35Z source: RADB last-modified: 2023-11-13T16:03:06Z rpki-ov-state: valid route6: 2403:4540::/32 origin: AS137991 descr: Lifeway Singapore Pte. Ltd. 81 Ubi Avenue 4 #05-12, UB. One mnt-by: MAINT-LIFEWAY-SG last-modified: 2019-01-24T05:47:11Z source: APNIC rpki-ov-state: valid route6: 2403:4540::/32 origin: AS137991 descr: LWS Network mnt-by: MAINT-AS137991 changed: freddi [at] lifewaysg.com 20201019 #06:52:45Z source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: valid