These entries are queried from radb.net using whois, you can try my project getting these.
:AS13376 route: 150.228.0.0/16 origin: AS13376 descr: Toppan Merrill admin-c: GEISE30-ARIN tech-c: GEISE30-ARIN mnt-by: MNT-TML-202 created: 2022-07-14T14:34:30Z last-modified: 2022-07-14T14:34:30Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 150.228.0.0/16 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS13376 remarks: Proxy add for EDIA customer Merrill mnt-by: MAINT-AS7922 changed: rodney_finley [at] cable.comcast.com 20201013 source: RADB last-modified: 2023-11-13T16:02:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 150.228.30.0/23 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS13376 remarks: Proxy add for EDIA customer Merrill mnt-by: MAINT-AS7922 changed: rodney_finley [at] cable.comcast.com 20201013 source: RADB last-modified: 2023-11-13T16:02:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 150.228.80.0/22 descr: Route Object for MERRILL GERMANY GMBH origin: AS13376 mnt-by: DE-COLT-MNT created: 2014-07-10T07:03:23Z last-modified: 2018-09-04T17:57:53Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source