Is a sustained ranged or area attack, still a ranged / area attack on subsequent rounds?
A player is asking whether the 'Shield of Deflection' [ddi] would work against the effects of a sustained range or area
It depends on the power and what is being sustained.
If say the power was Witch's bolt and was being sustained, then sure it would grant the resistance.
However, most powers are zone sustains and in this case the damage is coming form the zone not an area or ranged attack.