These entries are queried from radb.net using whois, you can try my project getting these.
:AS52449 route: 138.97.156.0/22 origin: AS52449 mnt-by: MTB2 created: 2016-05-11T14:55:53Z last-modified: 2018-09-04T18:26:40Z 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: valid route: 138.97.156.0/22 descr: LACNIC generated route for My Tech BZ origin: AS52449 remarks: LACNIC generated route for My Tech BZ remarks: maxLength 22 mnt-by: MNT-BZ-MTBZ-LACNIC changed: -tec.bz 20240308 source: LACNIC remarks: *************************************************** remarks: This object may have been modified remarks: For more information, please query whois.lacnic.net remarks: *************************************************** last-modified: 2024-03-08T15:00:05Z rpki-ov-state: valid route: 167.249.200.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS52449 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151202 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: valid route: 167.249.200.0/22 descr: LACNIC generated route for My Tech BZ origin: AS52449 remarks: LACNIC generated route for My Tech BZ remarks: maxLength 22 mnt-by: MNT-BZ-MTBZ-LACNIC changed: -tec.bz 20240308 source: LACNIC remarks: *************************************************** remarks: This object may have been modified remarks: For more information, please query whois.lacnic.net remarks: *************************************************** last-modified: 2024-03-08T15:00:05Z rpki-ov-state: valid route: 167.249.200.0/22 origin: AS52449 mnt-by: MTB2 created: 2016-05-11T14:56:09Z last-modified: 2018-09-04T18:26:40Z 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: valid route: 168.195.76.0/22 descr: LACNIC generated route for My Tech BZ origin: AS52449 remarks: LACNIC generated route for My Tech BZ remarks: maxLength 22 mnt-by: MNT-BZ-MTBZ-LACNIC changed: -tec.bz 20240308 source: LACNIC remarks: *************************************************** remarks: This object may have been modified remarks: For more information, please query whois.lacnic.net remarks: *************************************************** last-modified: 2024-03-08T15:00:05Z rpki-ov-state: valid route: 168.195.76.0/22 origin: AS52449 mnt-by: MTB2 created: 2016-09-20T13:27:45Z last-modified: 2018-09-04T18:32:37Z 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: valid route: 170.247.220.0/22 descr: LACNIC generated route for My Tech BZ origin: AS52449 remarks: LACNIC generated route for My Tech BZ remarks: maxLength 22 mnt-by: MNT-BZ-MTBZ-LACNIC changed: -tec.bz 20240308 source: LACNIC remarks: *************************************************** remarks: This object may have been modified remarks: For more information, please query whois.lacnic.net remarks: *************************************************** last-modified: 2024-03-08T15:00:05Z rpki-ov-state: valid route: 170.247.220.0/22 origin: AS52449 mnt-by: MTB2 created: 2017-02-23T22:00:17Z last-modified: 2018-09-04T18:43:10Z 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: valid route6: 2803:3d00::/32 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS52449 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: respinosa [at] columbus-networks.com 20150728 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: valid route6: 2803:3d00::/32 descr: LACNIC generated route6 for My Tech BZ origin: AS52449 remarks: LACNIC generated route6 for My Tech BZ remarks: maxLength 32 mnt-by: MNT-BZ-MTBZ-LACNIC changed: -tec.bz 20240308 source: LACNIC remarks: *************************************************** remarks: This object may have been modified remarks: For more information, please query whois.lacnic.net remarks: *************************************************** last-modified: 2024-03-08T15:00:05Z rpki-ov-state: valid