NOTIFICATION OF COMPUTING CAPACITY STATUS

One or more computing instances are instantiated and allocated to customers. The computing instances have a modifiable interruptibility property that is operable to allow a computing instance to be terminated or reallocated from a first customer to a second customer. Requests for additional computing instances having modifiable interruptibility properties are received. Information pertaining to the instantiated computing instances and requested additional computing instances is provided. The information may include a current status of the instantiated computing instances or requested additional computing resources.