Not anymore. You could not get a KLM FF#, you were directed to NW. On AF you could get a FP# before the merger. All those with Travelling Dutchman or Frequencee Plus numbers were folded into Flying Blue. If your travels include a lot of NW flights, FB elites get EUAs on NW, I am not aware that happens on CO. If your travel pattern is not due to change for a while, the allure of FB is based on lower thresholds to get top status - 70K EQM or 60 segments, and lifetime status after 10 continous years of being PLAT. If CO would offer that again, they will have my undivided attention.