These entries are queried from radb.net using whois, you can try my project getting these.
:AS26363 route: 216.75.208.0/20 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS26363 remarks: Proxy add for EDIA customer Covidien mnt-by: MAINT-AS7922 changed: adam_berg [at] cable.comcast.com 20140115 #12:38:59Z 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: 216.75.220.0/24 descr: CLARO S.A. Customer origin: AS26363 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190121 source: RADB last-modified: 2023-11-13T15:55:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source