The requested vessel with name FANG CHENG and MMSI:0 and IMO:6725248 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
FANG CHENG 1 N/A 413465790 SHEN ZHEN Oct 21, 2017 17:50 UTC
FANG CHENG GANG 9571674 477963300 NING BO Oct 21, 2017 16:49 UTC

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