These entries are queried from radb.net using whois, you can try my project getting these.
:AS23620 route: 43.255.40.0/22 descr: DMM.com LLC mnt-by: MAINT-JP-DMM origin: AS23620 last-modified: 2018-06-22T10:42:56Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 43.255.40.0/22 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.254.144.0/22 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.254.144.0/22 descr: DooGA Co.,Ltd. origin: AS23620 notify: admin [at] int-gw.kddi.ne.jp mnt-by: MAINT-AS2516 changed: admin [at] int-gw.kddi.ne.jp 20131218 source: RADB last-modified: 2023-11-13T15:45:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.254.144.0/22 descr: DMM.com LLC mnt-by: MAINT-JP-DMM origin: AS23620 last-modified: 2018-06-22T10:42:01Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.112.80.0/20 descr: DMM.com LLC mnt-by: MAINT-JP-DMM origin: AS23620 last-modified: 2018-06-22T10:40:56Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.112.80.0/20 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.6.244.0/22 descr: DMM.com LLC mnt-by: MAINT-JP-DMM origin: AS23620 last-modified: 2018-06-22T10:38:40Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.6.244.0/22 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.6.247.0/24 descr: Proxy-registered route object origin: AS23620 remarks: auto-generated route object remarks: this next line gives the robot something to recognize remarks: L'enfer, c'est les autres remarks: remarks: This route object is for a Level 3 customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found, and remarks: since some Level 3 peers filter based on these objects remarks: this route may be rejected if this object is not created. remarks: remarks: Please contact dl-routing [at] lumen.com if you have any remarks: questions regarding this object. mnt-by: LEVEL3-MNT changed: roy [at] Level3.net 20060420 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.209.144.0/20 origin: AS23620 descr: DMM.com LLC 24th floor Sumitomo Fudosan Roppongi Grand Tower 3-2-1, Roppongi, Minato-ku Tokyo, Japan mnt-by: MAINT-JP-DMM last-modified: 2020-11-05T06:42:48Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.209.144.0/20 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.209.145.0/24 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.209.145.0/24 origin: AS23620 descr: DMM.com LLC 24th floor Sumitomo Fudosan Roppongi Grand Tower 3-2-1, Roppongi, Minato-ku Tokyo, Japan mnt-by: MAINT-JP-DMM last-modified: 2019-10-21T08:55:25Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.209.147.0/24 origin: AS23620 descr: DMM.com LLC 24th floor Sumitomo Fudosan Roppongi Grand Tower 3-2-1, Roppongi, Minato-ku Tokyo, Japan mnt-by: MAINT-JP-DMM last-modified: 2019-10-21T08:56:09Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.209.147.0/24 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.209.149.0/24 origin: AS23620 descr: DMM.com LLC 24th floor Sumitomo Fudosan Roppongi Grand Tower 3-2-1, Roppongi, Minato-ku Tokyo, Japan mnt-by: MAINT-JP-DMM last-modified: 2019-10-21T08:56:40Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.209.149.0/24 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.209.152.0/24 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.209.152.0/24 origin: AS23620 descr: DMM.com LLC 24th floor Sumitomo Fudosan Roppongi Grand Tower 3-2-1, Roppongi, Minato-ku Tokyo, Japan mnt-by: MAINT-JP-DMM last-modified: 2020-10-22T09:37:46Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 223.252.112.0/20 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 223.252.112.0/20 descr: DMM.com LLC mnt-by: MAINT-JP-DMM origin: AS23620 last-modified: 2018-06-21T09:49:02Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 223.252.113.0/24 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 223.252.113.0/24 origin: AS23620 descr: DMM.com LLC 24th floor Sumitomo Fudosan Roppongi Grand Tower 3-2-1, Roppongi, Minato-ku Tokyo, Japan mnt-by: MAINT-JP-DMM last-modified: 2019-07-17T03:44:27Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 223.252.114.0/24 origin: AS23620 descr: DMM.com LLC 24th floor Sumitomo Fudosan Roppongi Grand Tower 3-2-1, Roppongi, Minato-ku Tokyo, Japan mnt-by: MAINT-JP-DMM last-modified: 2019-07-17T03:44:10Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 223.252.114.0/24 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 223.252.115.0/24 origin: AS23620 descr: DMM.com LLC 24th floor Sumitomo Fudosan Roppongi Grand Tower 3-2-1, Roppongi, Minato-ku Tokyo, Japan mnt-by: MAINT-JP-DMM last-modified: 2019-07-17T03:43:42Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 223.252.115.0/24 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 223.252.116.0/24 origin: AS23620 descr: DMM.com LLC 24th floor Sumitomo Fudosan Roppongi Grand Tower 3-2-1, Roppongi, Minato-ku Tokyo, Japan mnt-by: MAINT-JP-DMM last-modified: 2019-07-17T02:45:35Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 223.252.116.0/24 descr: DMM.com LLC X-keiro :as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231222 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df0:6800::/48 descr: DMM.com Labo Co., Ltd. X-keiro : as23620 [at] dmm.com origin: AS23620 notify: as23620 [at] dmm.com mnt-by: MAINT-AS23620 changed: as23620 [at] dmm.com 20231101 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df0:6800::/48 origin: AS23620 descr: DMM.com LLC 24th floor Sumitomo Fudosan Roppongi Grand Tower 3-2-1, Roppongi, Minato-ku Tokyo, Japan mnt-by: MAINT-JP-DMM last-modified: 2022-10-26T01:17:05Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source