The requested vessel with name YI SHENG and MMSI:233871299 and IMO:0 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
YI SHENG MANN NO.6 N/A 416002507 Feb 09, 2018 03:53 UTC
YI SHENG WANG NO1 N/A 416004583 Sep 16, 2017 18:22 UTC

Also, you may try to find the vessel in our comprehensive Vessels Database or track this ship on the map.