These entries are queried from radb.net using whois, you can try my project getting these.
:AS328436 route: 102.69.164.0/22 descr: Flashnet Network origin: AS328436 mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20190301 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.69.164.0/23 descr: Flashnet Network origin: AS328436 mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20190301 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.69.164.0/24 descr: Flashnet Server Network origin: AS328436 mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20190215 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.69.165.0/24 descr: Flashnet Client Network origin: AS328436 mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20190301 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.69.166.0/23 descr: Flashnet Network origin: AS328436 mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20190301 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.69.166.0/24 descr: Flashnet Network origin: AS328436 mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20190301 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.69.167.0/24 descr: Flashnet Client Network origin: AS328436 mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20190301 changed: *** [at] flashnet.co.tz 20190301 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.223.16.0/22 origin: AS328436 descr: Flashnet Network mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20200430 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.223.16.0/23 origin: AS328436 descr: Flashnet Network mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20200430 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.223.16.0/24 origin: AS328436 descr: Flashnet Network mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20200430 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.223.17.0/24 origin: AS328436 descr: Flashnet Network mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20200430 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.223.18.0/23 origin: AS328436 descr: Flashnet Network mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20200430 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.223.18.0/24 origin: AS328436 descr: Flashnet Network mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20200430 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.223.19.0/24 origin: AS328436 descr: Flashnet Network mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20200430 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2c0f:ebf8::/32 origin: AS328436 descr: Flashnet Network mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20200430 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2c0f:ebf8:1::/48 origin: AS328436 descr: Flashnet-Core mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20230113 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2c0f:ebf8:2::/48 origin: AS328436 descr: Flashnet-Clients mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20230113 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2c0f:ebf8:feed::/48 origin: AS328436 descr: Flashnet-Core mnt-by: MCAN1-MNT changed: *** [at] flashnet.co.tz 20230113 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source