ICAO Class F Airspace
 

ICAO lists airspace classifications A through G.

Many countries have only a few of these classes of airspace.

I was wondering if any country has ICAO Class F airspace?

Note: please don’t name Canada as what the Canadians call “Class F” airspace does not match the ICAO definition and Canada has a filed difference with ICAO which can be viewed in the AIP CANADA.

We used to in the UK but I think it was removed/reclassified at least 10 years ago. “Advisory Routes” were Class F if my memory serves me.

Australia doesn't have any designated Class F Airspace, but does have lots of Class G. If you read the description of Class G in the Australian AIP, it matches the description of ICAO Class F. So Austalia in reality does have lots of ICAO Class F, which we just call Class G in Australia.

Clear as mud?
Alpha