These entries are queried from radb.net using whois, you can try my project getting these.
:AS33739 route: 63.135.80.0/20 descr: Myspace-block3 origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: cbalic [at] myspace.com 20071031 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.208.226.0/24 descr: Myspace origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.209.139.0/24 descr: Myspace-IGN-OC2-Legacy-Savvis origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.10.16.0/20 descr: Myspace origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.10.16.0/23 descr: Myspace-IGN-SC4 origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.10.16.0/24 descr: Myspace origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.10.18.0/24 descr: Myspace origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.10.20.0/24 descr: Myspace-IGN-OC2 origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.10.22.0/24 descr: Myspace-IGN-Intelenet origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.89.74.0/24 descr: myspace.com route origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.16.32.0/22 descr: PNAP-LAX INTERNAP_MYSPACE_ROUTE origin: AS33739 mnt-by: MAINT-AS1828 changed: rcraver [at] internap.com 20051116 source: RADB last-modified: 2023-11-13T16:13:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.16.32.0/22 descr: Myspace origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.120.182.0/24 descr: Myspace-FoxSports-Sprint origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.38.0.0/23 descr: Myspace-IGN-Intelenet-Legacy origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.38.8.0/21 descr: Myspace-IGN-Intelenet-Legacy origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.178.32.0/20 descr: Myspace origin: AS33739 notify: ipadmin [at] myspace.com mnt-by: MAINT-MYSPACE changed: support [at] peakwebconsulting.com 20070521 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.178.32.0/20 descr: PNAP-LAX myspace route origin: AS33739 mnt-by: MAINT-AS1828 changed: bkallinen [at] internap.com 20060522 source: RADB last-modified: 2023-11-13T16:13:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source