/usr/share/dvb/dvb-c/at-Vienna is in dtv-scan-tables 0+git20140107.1850cf8-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | # Kabel Vienna
# freq sr fec mod
C 377750000 6900000 NONE QAM256
|