These entries are queried from radb.net using whois, you can try my project getting these.
:AS1776 route: 137.208.0.0/16 descr: WU-WIEN origin: AS1776 mnt-by: AS1776-MNT created: 1970-01-01T00:00:00Z last-modified: 2001-09-22T09:31:52Z source: RIPE 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 137.208.10.10/32 descr: WU DNS ns1 IPv4 origin: AS1776 remarks: mnt-by: AS1776-MNT created: 2019-10-28T13:05:22Z last-modified: 2019-10-28T13:05:22Z source: RIPE 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 137.208.20.10/32 descr: WU DNS ns2 IPv4 origin: AS1776 remarks: mnt-by: AS1776-MNT created: 2019-10-28T13:09:09Z last-modified: 2019-10-28T13:09:09Z source: RIPE 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 137.208.250.10/32 descr: WU Test Prefix origin: AS1776 remarks: mnt-by: AS1776-MNT created: 2018-08-29T10:23:57Z last-modified: 2018-08-29T10:23:57Z source: RIPE 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.150.203.0/24 descr: WU-WIEN origin: AS1776 mnt-by: AS1776-MNT created: 2002-12-05T12:58:19Z last-modified: 2002-12-05T12:58:19Z source: RIPE 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: not_found # No ROAs found, or RPKI validation not enabled for source