ICAO is supposed to ratify company callsigns on the basis that they are phonetically uniqe and/or distinguishable.
Now we seem to have operations called "Ghost Rider" and "Coast Rider" which are absloutely identical phonetically operating within a few miles of each other.
Two years ago there were "Debonair" and "Japanair" callsigns with IDENTICAL numbers operating simultaneously in Maastricht airspace.....Try saying "Debonair" and "Japanair" in Dutch and Japanese English accents and youll maybe see my point. Additionally there was also a company called "Denimair" on frequency too!
This is bloody dangerous and ICAO needs to get its act together before a serious incident or worse occurs.
They aint in control!