The requested vessel with name IMPALA EL BANCO and MMSI:235687901 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
IMPALA EL BANCO N/A 730151804 BARRANQUILLA Feb 17, 2018 13:20 UTC

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