he AT&T GoPhone 4FF Micro SIM Starter Kit works with standard, micro and nano devices. It is also compatible with 3G, 4G and 4G LTE networks. With the AT&T SIM starter kit plus 2FF/3FF adapter, you can pay by the month, day or minute. It is ideal for activating a phone you already own as well as for international travelers visiting the United States.
AT&T PREPAIDsm SIM Starter Kit