said by grand total:I wonder how Callcentric appear to be able to give away as many as you want. Different contract I presume.
Perhaps you can ask them. They don't have subaccounts, I can't personally see why you would want more than one.
Inum is not a very popular option and will probably remain a "niche market" so to be honest, it's not very high on our priority list. When we were offered inum, we tried to be able to give more than one number per account but it was not possible at the time.