So, if you are from a foreign country, buy a at&t GoPhone Prepaid card for your mobile (don't do it at the airport, the reseller sucks...). Maybe you'll have to set the APN. Ask Dennis, he will do it.
Stay connected with AT&T in New York. We offer phones, tablets, smartwatches, and connected devices from all of your favorite brands. We also offer wireless data plans in New York for every need. Enjoy the flexibility of an New York prepaid phone plan—with no annual contract and no credit check...