These entries are queried from radb.net using whois, you can try my project getting these.
:AS19571 route: 72.214.221.0/24 origin: AS19571 descr: PHX remarks: Proxy object for AS19571 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:05Z rpki-ov-state: valid route: 165.160.32.0/21 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS19571 remarks: Proxy add for EDIA customer CSC Corporation Services Company mnt-by: MAINT-AS7922 changed: scott_mccormick2 [at] cable.comcast.com 20150902 source: RADB last-modified: 2023-11-13T15:54:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 173.205.147.0/24 descr: AS19571 origin: AS19571 remarks: This route object is for an InfoRelay 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 InfoRelay peers filter based on these objects remarks: this route may be rejected if this object is not created. remarks: remarks: Please contact noc [at] inforelay.net if you have any remarks: questions regarding this object. mnt-by: MAINT-AS33597 changed: irr [at] inforelay.com 20131128 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.71.40.0/24 descr: proxy route for RIGHTMEDIA by MZIMA origin: AS19571 notify: netops [at] mzima.net mnt-by: MAINT-AS3257 changed: netops [at] mzima.net 20070124 #03:28:48(UTC) changed: netguard [at] gtt.net 20181101 source: RADB last-modified: 2023-11-13T15:55:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source