1. A method comprising: activating, by a system comprising a processor, a dataset comprising coordinates defining a geo-fence in response to an addition of a subscriber to a subscriber list; determining, by the system, a reduced coordinate dataset as being analogous coordinates between the coordinates of the dataset and coordinates of another dataset; and comparing, by the system, a coordinate associated with a location of a device with the reduced coordinate dataset to determine whether the device is present within the geo-fence.