These entries are queried from radb.net using whois, you can try my project getting these.
:AS51409 route: 45.146.156.0/24 descr: SipSynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2020-02-27T08:28:23Z last-modified: 2020-02-27T08:28:23Z 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: 45.146.157.0/24 descr: SipSynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2020-02-27T08:28:48Z last-modified: 2020-02-27T08:28:48Z 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: 45.146.158.0/24 descr: SipSynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2020-02-27T08:29:09Z last-modified: 2020-02-27T08:29:09Z 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: valid route: 45.146.159.0/24 descr: SipSynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2020-02-27T08:29:27Z last-modified: 2020-02-27T08:29:27Z 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: 178.255.56.0/21 descr: Sipsynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2010-08-18T16:11:32Z last-modified: 2020-02-25T12:51:44Z 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: 178.255.56.0/24 descr: Sipsynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2014-05-13T12:43:36Z last-modified: 2020-02-25T12:49:32Z 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: 178.255.57.0/24 descr: Sipsynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2014-05-13T12:44:11Z last-modified: 2020-02-25T12:50:01Z 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: 178.255.58.0/24 descr: Sipsynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2014-05-13T12:44:26Z last-modified: 2020-02-25T12:50:33Z 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: 178.255.59.0/24 descr: Sipsynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2014-05-13T12:45:21Z last-modified: 2020-02-25T12:50:51Z 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: 178.255.60.0/24 descr: Sipsynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2014-05-13T12:45:32Z last-modified: 2020-02-25T12:51:01Z 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: 178.255.61.0/24 descr: Sipsynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2014-05-13T12:45:45Z last-modified: 2020-02-25T12:51:12Z 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: 178.255.62.0/24 descr: Sipsynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2014-05-13T12:45:55Z last-modified: 2020-02-25T12:51:23Z 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: 178.255.63.0/24 descr: Sipsynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2014-05-13T12:46:09Z last-modified: 2020-02-25T12:51:34Z 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: 185.41.224.0/22 descr: SipSynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2015-02-06T12:04:38Z last-modified: 2020-02-25T13:07:39Z 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: 185.41.224.0/24 descr: SipSynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2015-02-06T12:01:22Z last-modified: 2020-02-25T13:07:06Z 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: 185.41.225.0/24 descr: SipSynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2015-02-06T12:01:40Z last-modified: 2020-02-25T13:07:16Z 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: 185.41.226.0/24 descr: SipSynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2015-02-06T12:01:54Z last-modified: 2020-02-25T13:07:24Z 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: 185.41.227.0/24 descr: SipSynergy origin: AS51409 mnt-by: mnt-uk-sipsynergy-1 created: 2015-02-06T12:02:09Z last-modified: 2020-02-25T13:07:31Z 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