Methods, systems, and computer program products for integrating roaming control in a signaling message routing node are disclosed. In one exemplary implementation, a method for providing roaming control at a signaling message routing node is provided. The method includes receiving a signaling message at a signaling message routing node in a network of a home service provider of a mobile subscriber, the signaling message being generated in response to the mobile subscriber registering in a foreign carrier's network. It is determined whether the mobile subscriber is allowed, by the home service provider, to roam in the foreign carrier's network. In response to determining that mobile subscriber is not allowed to roam in the foreign carrier's network, a response to the signaling message is generated and sent, where the response indicates that mobile subscriber is not allowed to roam in a foreign carrier's network. The steps of the method are performed at a signaling message routing node.