These entries are queried from radb.net using whois, you can try my project getting these.
:AS12120 route: 63.116.253.0/24 descr: RR-RC-Amphenol Aerospace-Syracuse origin: AS12120 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.88.132.0/24 descr: AMPHENOL AEROSPACE CORP origin: AS12120 remarks: Object registered by New edge for customer transit notify: bgpadmin [at] newedgenetworks.com mnt-by: NEWEDGENETS-MNT changed: bgpadmin [at] newedgenetworks.com 20050803 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.26.215.0/24 descr: AMPHENOL AEROSPACE CORP origin: AS12120 remarks: Object registered by New edge for customer transit notify: bgpadmin [at] newedgenetworks.com mnt-by: NEWEDGENETS-MNT changed: bgpadmin [at] newedgenetworks.com 20050803 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.28.132.0/24 descr: AMPHENOL AEROSPACE CORP origin: AS12120 remarks: Object registered by New edge for customer transit notify: bgpadmin [at] newedgenetworks.com mnt-by: NEWEDGENETS-MNT changed: bgpadmin [at] newedgenetworks.com 20050803 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.157.27.0/24 descr: AMPHENOL AEROSPACE CORP origin: AS12120 remarks: Object registered by New edge for customer transit notify: bgpadmin [at] newedgenetworks.com mnt-by: NEWEDGENETS-MNT changed: bgpadmin [at] newedgenetworks.com 20050803 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source