I am searching for airports that have ILS (not sure if there is a "law" that any airport servicing civil flights must have one).
So I googled around and found this nice site http://www.azworldairports.com.
So I've been looking at airport in Vienna and in airfield section there is following:
Runway 1: Heading 11/29, 3 500m (11 482ft), 75, ICAO Cat. I, 3B, Aircraft size max: E, Rwy 11, ILS 114, Lighting: 11 CAT 1/PAPI, No Restrictions, Rwy 29, ILS 294, Lighting: 29 CAT 1/PAPI, No Restrictions
Runway 2: Heading 16/34, 3 600m (11 811ft), 75, ICAO Cat. I, 3B, Aircraft size max: E, ILS 162, Lighting: CAT III B/PAPI, No Restrictions
What exactly is ILS 114 / 162 / 294?