getInArea API Function Error

#1

Hi all, I am unable to get the getInArea API Function to return any results. The response is always an error as follows:

"<kml stat="fail"><err info="BBOX too big - Limit to 4,000,000 sq.mts." code="5"/></kml>"

This is true using the following example in the API documentation:

http://www.opencellid.org/cell/getInArea?key=xxx&BBOX=52.0,21.0,52.5,21.5&mcc=260&mnc=2&lac=45070&limit=4&offset=16&format=kml

Thanks, Dano