These entries are queried from radb.net using whois, you can try my project getting these.
:AS23999 route: 103.137.156.0/24 origin: AS23999 descr: VNPT-Customer-Vietnam News Agency mnt-by: MAINT-AS45899 changed: radb [at] vnpt.vn 20221128 notify: ktm.ip [at] vnpt.vn source: RADB last-modified: 2023-11-13T16:13:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.6.96.0/23 descr: TTXVN origin: AS23999 notify: noc [at] vnn.vn notify: bachhm [at] vdc.com.vn mnt-by: MAINT-VDC changed: luanlt [at] vdc.com.vn 20130822 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.6.96.0/23 descr: PACNET (proxy-registered route object) origin: AS23999 remarks: This route object is for a PACNET customer route which is being exported under this origin AS. + This route object was created because no existing route object with the same origin was found, and since some PACNET peers filter based on these objects this route may be rejected if this object is not created. + Please contact abuse [at] pacnet.net if you have any Concerns regarding Spam/Abuses related to this object + Please contact ip-noc [at] pacnet.net if you have any other Questions regarding this object. notify: ip-noc [at] pacnet.net mnt-by: MAINT-AS4637 changed: ip-noc [at] pacnet.net 20100201 source: RADB last-modified: 2023-11-13T15:58:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.6.96.0/24 descr: Proxy-registered route object origin: AS23999 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20210223 source: RADB last-modified: 2023-11-13T16:03:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.6.96.0/24 descr: TTXVN origin: AS23999 notify: noc [at] vnn.vn notify: bachhm [at] vdc.com.vn mnt-by: MAINT-VDC changed: luanlt [at] vdc.com.vn 20130822 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.6.97.0/24 descr: TTXVN origin: AS23999 notify: noc [at] vnn.vn notify: bachhm [at] vdc.com.vn mnt-by: MAINT-VDC changed: luanlt [at] vdc.com.vn 20130822 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.6.97.0/24 descr: Proxy-registered route object origin: AS23999 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20210223 source: RADB last-modified: 2023-11-13T16:03:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source