These entries are queried from radb.net using whois, you can try my project getting these.
:AS27441 route: 38.221.252.0/24 descr: Proxy-registered route object origin: AS27441 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 20030329 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.121.16.0/21 descr: Switch Communications Proxy Route origin: AS27441 remarks: This is a proxy route for a Switch Comm remarks: customer: Silver Springs Networks remarks: Please contact bgp at switchnap.com with any questions mnt-by: SWITCHCOM-MNT changed: netops [at] switchnap.com 20100907 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.121.16.0/21 descr: Customer Route Object - Silver Spring Networks origin: AS27441 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20110509 #23:57:03Z source: RADB last-modified: 2023-11-13T15:41:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.121.16.0/23 descr: Switch Communications Customer Route origin: AS27441 member-of: RS-AS23005 remarks: Route for Itron, Inc. remarks: 74.121.16.0/23-24 mnt-by: MAINT-SWITCH changed: netops [at] switch.com 20200208 #17:10:07Z source: RADB last-modified: 2023-11-13T15:59:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.121.18.0/23 descr: Customer Route Object - Silver Spring Networks origin: AS27441 mnt-by: MAINT-ADN-WEST changed: routing [at] americanis.net 20150317 #19:23:09Z source: RADB last-modified: 2023-11-13T15:47:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.121.20.0/23 descr: Switch Communications Customer Route origin: AS27441 member-of: RS-AS23005 remarks: Route for Itron, Inc. remarks: 74.121.20.0/23-24 mnt-by: MAINT-SWITCH changed: netops [at] switch.com 20200208 #17:13:57Z source: RADB last-modified: 2023-11-13T15:59:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:10::/48 origin: AS27441 descr: Switch Communications Customer Route member-of: RS-AS23005 remarks: Route for ITRON mnt-by: MAINT-SWITCH changed: netops [at] switch.com 20230608 #14:53:42Z source: RADB last-modified: 2023-11-13T16:17:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source