METHODS, SYSTEMS, AND COMPUTER READABLE STORAGE DEVICES FOR HANDLING VIRTUALIZATION OF A PHYSICAL TELEPHONE NUMBER MAPPING SERVICE

Virtualization of a physical telephone number mapping service is provided. An amount of memory needed for handling requests from users of a physical telephone number mapping service provided by a communication network is determined. A listing of different virtual machine flavors available for instantiation is searched. Each virtual machine flavor has a different respective memory capacity. A determination is made whether there is a virtual machine flavor available for instantiation that has a memory capacity adequate to handle the requests. Responsive to determining that there is a virtual machine flavor available for instantiation that has the memory capacity adequate to handle the requests, instantiation of the virtual machine flavor is initiated for handling the requests.