Yeah, the witching hour(s) is normal, and you may find he wants to cluster feed duirng this period - which might help him to go longer between feeds overnight (if you're lucky). He is still very small yet, so as MR says, he'll need frequent feeds for the time being. One other thing you might want to consider is squeezing in an extra feed or two during the day (ie, 2-hourly), which also may help him stretch out the overnight feeds.
Sounds like he's doing great anyway!