Spectrum has an unlimited mobile internet plan – there are 2 choices of subscription, you can either pay by the number of lines or by the gig. If you subscribe by the number of lines, you will be charged $45 for every line you activate. If you want to purchase the plan by the gig, it will cost you $14 per gig. Subscribing to Spectrum mobile plan can help you to save up to 40% of telephone bill every month. Spectrum Mobile provides one of the largest coverage in the US, up to 98% of the population. They also operate a large network of hotspots nationwide.