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Flat/CCFT is a correspondence between gravity in asymptotically flat backgrounds and a field theory which is given by contraction of conformal field theory. In order to find the dictionary of Flat/CCFT correspondence one can start from AdS/CFT and take the contraction of CFT in the boundary as the dual description of the flat-space limit (zero cosmological constant limit) of the asymptotically AdS spacetimes in the bulk side. In this paper we study some aspects of this correspondence for Flat_3/CCFT_2 case. We calculate the charge algebra of symmetry generators by using the stress tensor of three dimensional asymptotically flat spacetimes proposed by Flat/CCFT correspondence and show that it is the BMS3 algebra with known central charges. We also calculate the Cardy-like formula of CCFT just by contraction of the proper formula in CFT
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