69.0.0.0

Hi all, does it seem to anyone else in this space that several other
networks are filtering still on the 69.0.0.0 boundary? We have
69.1.64.0/20 and get filtered one in a while. SPecifically digitalisland
and turner broadcasting which seems to be part of ans net in arin which I
assume is aol. What is the best way to insure that this ip range is
unfiltered or that 69.0.0.0 n general isn't filtered. We did file
objects as well.