To begin splitting the subnet into different pieces requires hardware, AS numbers so that the BGP cloud knows where the subnets splitting from UCSD live.  Not to mention some legal paperwork so that the IP space can be "leased" to your organization but not removed completely out of the non-profit.

Last I heard, people were trying to figure out the hardware aspect of things.

Splitting the subnet across the internet isn't as easy as allocating subnets to your regional coordinators and letting them deal with it.  Tho, that's really who should be involved.  There are Internet engineering aspects that most people haven't even thought of yet.