[c-nsp] Customer getting its own AS

[redscorpion69]

One of our customers just got AS number. He is going to keep our addressing
scheme (so Provider Assigned address space).

What is the best strategy to change static routing to now new BGP sessions
on few of POPs. Where does deleting ripe object and creating new ones come
into play?

So in other words what would be the best order of operation to migrate
customer with least amount of downtime?

Much regards