i think its more around 3000-4000 kmGiven it has an S-band (not "just" L-band like before) antenna and judging from the array size and increased power per T/R module of the L-band component (over super green pine)...I would guess anywhere between 1000 - 2000 km max range. Actual precise number would be classified I think.
Well done to the Israeli radar engineers for developing a multi-band architecture in the signal processing. This is not an easy feat with digital beams.