Methods and systems for creating mobile conference rooms for conference calls between client devices and one or more contacts are described herein. A server receives, from the client device, a request to create a mobile conference room. The server creates the mobile conference room by assigning a phone number to the mobile conference room. After notifying the client device, the server receives data regarding one or more contacts to add to the mobile conference room. The server receives, from the client device, a request to initiate a conference call with a subset of contacts. A call is received, from the server, concurrently by each of the subset of contacts. The server bridges the client device and the contacts that have answered the call on the conference call.