These entries are queried from radb.net using whois, you can try my project getting these.
:AS27259 route: 198.246.243.0/24 descr: Proxy-registered route object origin: AS27259 remarks: auto-generated route object remarks: %%TSN-APF-R-LINEBREAK remarks: remarks: This route is for a(n) TOWARDEX customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was proxy-registered by remarks: MAINT-TOWARDEX because either the customer has remarks: not registered the IRR objects on his own, or remarks: a concern exists where some peers may be using remarks: wrong database that may result in nuisance remarks: filtering. remarks: remarks: Contact irr [at] towardex.com if you have any remarks: questions relating to this object. mnt-by: MAINT-TOWARDEX changed: irrpt [at] honeybadger.twdx.net 20220707 #TSN20220708:0041Z-23 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.246.243.0/24 descr: Proxy-registered route object origin: AS27259 remarks: auto-generated route object remarks: %%TSN-APF-R-LINEBREAK remarks: remarks: This route is for a(n) TOWARDEX customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was proxy-registered by remarks: MAINT-TOWARDEX because either the customer has remarks: not registered the IRR objects on his own, or remarks: a concern exists where some peers may be using remarks: wrong database that may result in nuisance remarks: filtering. remarks: remarks: Contact irr [at] towardex.com if you have any remarks: questions relating to this object. mnt-by: MAINT-TOWARDEX changed: irrpt [at] honeybadger.twdx.net 20220707 #TSN20220708:0041Z-23 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.246.243.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS27259 remarks: Proxy add for customer American Student Assistance mnt-by: MAINT-AS7922 changed: chris_johnson8 [at] cable.comcast.com 20131014 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.246.243.0/27 descr: Massachusetts Higher Education ASA origin: AS27259 mnt-by: MAINT-AS27506 changed: probillard [at] lightower.com 20190124 source: RADB last-modified: 2023-11-13T15:55:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.130.146.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS27259 remarks: Proxy add for customer American Student Assistance mnt-by: MAINT-AS7922 changed: chris_johnson8 [at] cable.comcast.com 20131014 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source