These entries are queried from radb.net using whois, you can try my project getting these.
:AS57944 route: 91.236.248.0/22 descr: route object origin: AS57944 mnt-by: SNAK-MNT created: 2012-03-20T11:27:55Z last-modified: 2012-03-20T11:27:55Z 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: valid route: 91.236.248.0/24 descr: M-node origin: AS57944 mnt-by: SNAK-MNT created: 2015-01-08T10:46:51Z last-modified: 2015-01-12T10:26:05Z 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: valid route: 91.236.249.0/24 descr: TM-node origin: AS57944 mnt-by: SNAK-MNT created: 2015-01-08T10:48:31Z last-modified: 2020-09-28T17:20:54Z 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: valid route: 91.236.250.0/24 descr: FTTx-node origin: AS57944 mnt-by: SNAK-MNT created: 2015-01-08T10:49:19Z last-modified: 2021-07-21T12:57:33Z 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: valid route: 91.236.251.0/24 descr: V-node origin: AS57944 mnt-by: SNAK-MNT created: 2015-01-08T10:50:06Z last-modified: 2015-01-12T10:28:05Z 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: valid route6: 2001:67c:440::/48 descr: ** IP-Connect IPv6 IPv6 route *** origin: AS57944 mnt-by: SNAK-MNT created: 2014-02-20T21:28:18Z last-modified: 2014-02-20T21:28:18Z 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: valid