By examining the VHF ACARS coverage on page 20 of
this ACARS service summary and
this slightly older estimate, I see four stations with some possibility of being send/receive stations as the aircraft headed (roughly) over Karpathos and southeast toward CAI, at least as LOS is measured ... depending on where along the track the aircraft is. Signal strength is another matter once over the basin of the Levantine Sea/Eastern Med.
HER, RHO, PFO, ALY and (ultimately CAI).
Does Egyptair use Satcom and VHF ACARS on their A320's, or only VHF? (Recalling that MH 370 apparently didn't use all of the Satcom services that the aircraft could have been subscribed to ...)