These entries are queried from radb.net using whois, you can try my project getting these.
:AS203725 route: 37.230.144.0/24 descr: St. Petersburg State Unitary Enterprise "St. Petersburg Information and Analytical Centre" origin: AS203725 mnt-by: LIDERTELECOM-mnt created: 2017-11-17T08:39:58Z last-modified: 2017-11-17T08:39:58Z 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: 46.243.177.0/24 descr: St. Petersburg State Unitary Enterprise "St. Petersburg Information and Analytical Centre" origin: AS203725 mnt-by: lidertelecom-mnt created: 2015-11-11T12:58:45Z last-modified: 2015-11-11T12:58:45Z 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