These entries are queried from radb.net using whois, you can try my project getting these.
:AS61449 route: 138.186.160.0/22 descr: LACNIC generated route for RESEARCH SRL origin: AS61449 remarks: LACNIC generated route for RESEARCH SRL remarks: maxLength 24 mnt-by: MNT-AR-RESR14-LACNIC changed: 20240413 source: LACNIC remarks: *************************************************** remarks: This object may have been modified remarks: For more information, please query whois.lacnic.net remarks: *************************************************** last-modified: 2024-04-13T09:45:06Z rpki-ov-state: valid route: 138.186.160.0/22 descr: ITX-GIGARED origin: AS61449 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20181004 #14:02:14Z source: RADB last-modified: 2023-11-13T15:54:57Z rpki-ov-state: valid route: 201.139.80.0/22 descr: LACNIC generated route for RESEARCH SRL origin: AS61449 remarks: LACNIC generated route for RESEARCH SRL remarks: maxLength 24 mnt-by: MNT-AR-RESR14-LACNIC changed: 20240413 source: LACNIC remarks: *************************************************** remarks: This object may have been modified remarks: For more information, please query whois.lacnic.net remarks: *************************************************** last-modified: 2024-04-13T09:45:06Z rpki-ov-state: valid route: 201.139.80.0/22 descr: MHNET origin: AS61449 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20170609 #19:53:24Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route6: 2803:580::/32 descr: LACNIC generated route6 for RESEARCH SRL origin: AS61449 remarks: LACNIC generated route6 for RESEARCH SRL remarks: maxLength 48 mnt-by: MNT-AR-RESR14-LACNIC changed: 20240413 source: LACNIC remarks: *************************************************** remarks: This object may have been modified remarks: For more information, please query whois.lacnic.net remarks: *************************************************** last-modified: 2024-04-13T09:45:06Z rpki-ov-state: valid route6: 2803:580::/32 descr: ITX-GIGARED-CUSTOMER-ASN61449 origin: AS61449 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20181004 #20:41:14Z source: RADB last-modified: 2023-11-13T15:54:57Z rpki-ov-state: valid