MWL light curves of 1ES 0647+250. From top to bottom: MAGIC (> 100 GeV, 30-day binning), Fermi-LAT flux and spectral index (300 MeV–300 GeV, 30-day binning), Swift-XRT (0.3−2 keV and 2−10 keV), Swift-XRT spectral index, Swift-UVOT (B, V, U, UVW1, UVM2, and UVW2 filters), optical R band (KVA, Liverpool Telescope, Las Cumbres, and PIRATE telescope), and OVRO (15 GHz). We note that all the optical observations except those from 2020 were performed by KVA. The smaller error bars of the OVRO light curve after 2016 are due to a major upgrade of the instrument. Blue contours correspond to the MAGIC campaigns during the different observed states.