'KLM currently operates 22 747-400 and -400M aircraft and 2 -400ERF for a total of 24 aircraft. There were plans to acquire a 3rd ERF
and maybe a few more -400s, but those may well have been scrapped now that they no longer exist as an independent company and have to bow to the whiles and wills of Paris'
They do operate 3 747-400ERF's:
-CKA, CKB, CKC