  We search for possible symmetries present in the leptonic mixing data from
SU(3) subgroups of order up to 511. Theoretical results based on symmetry are
compared with global fits of experimental data in a chi-squared analysis,
yielding the following results. There is no longer a group that can produce all
the mixing data without a free parameter, but a number of them can accommodate
the first or the second column of the mixing matrix. The only group that fits
the third column is $\Delta(150)$. It predicts $\sin^22\theta_{13}=0.11$ and
$\sin^22\theta_{23}=0.94$, in good agreement with experimental results.
