Automatic virtual phone number pool management

Abstract

Methods, systems, and apparatus include computer programs encoded on a computer-readable storage medium for dynamic contact information assignment. A pool of telephone numbers is assigned to a pool manager. The pool manager allocates subsets of the telephone numbers to a plurality of allocators that are each responsible for allocating telephone numbers to an associated group of content sponsors. An allocator can determine an allocation of a subset of the telephone numbers for distribution among the content sponsors associated with the allocator. Pools of telephone numbers can be created that are each associated with a respective content sponsor associated with the allocator. One or more telephone numbers can be reclaimed from a pool. A reclaimed telephone number can be assigned by the allocator into either other pools associated with the allocator or back to the pool manager for allocation to other allocators.