A:Answer Yes, the Go Phone cards pay as you go system works with the AT&T Mobile Hotspots. You have to match the balance for the account (plan) for it process, for example: fifty dollars gets you 5 GB. If you only deposit forty five, it will not activate the Hotspot until you add another five dollars. AT&T considers it a monthly plan despite the "pay as you go" moniker. There's just no 2-year contract, deactivation fees, or papers to sign when you are ready to stop payment(s).