The short answer is yes
You say "feeder" (indicating you are on the load side of the service disconnect) so you will be using 225.32 but if this is really a service lateral (line side of the service disconnect) they are service conductors and you are in 230.70(A)(1)
It is really a distinction without a difference tho.
Both say the same thing
The disconnecting means shall be at a readily accessible location nearest the point of entrance of the conductors.
There is some debate about what "nearest the point of entrance" means but it isn't 20 feet. IMHO
