TSNG is another excellent release from THC. It is just your normal plain text mode wardialer without a GUI, but with the ability to scan with as many modems as you want. The only limits are your bandwidth, RAM and CPU power. So in theory, up to 65000 modems can be used in parallel to scan a large range of numbers. The modems can be in any area of the world, as long as you have network connectivity to the systems to which the modems are connected.