XLA 06
As of May 06 EUK no longer exists - all flights fall under the XLA banner.
Pretty good guess but I know a maximum of 3 a/c is more likely with one possibly leased from finnair with 1 X -800. Two aircraft are most likely due to various reasons with tour operators and new bases opening which would probably be 1 -800 and 1 lease in from finniar/flyjet