My iphone 5 won't let me go on the internet when I'm not at home?

I want to go on apps and instagram when I'm on the bus, and at school. Iphones are supposed to let you have internet when youre not at home right? My sister has the same phone as me, but hers connects to the internet when she's on the bus. I don't get it.

I'm guessing that who ever set your phone up didn't give you a data plan on your account therefore you can only use internet if your connected. To a Wi-Fi network. Either way its definitely a network. Or phone service issue.

The guy above me is wrong because even if you didn't have a data plan on the phone (which is impossible because every carrier automatically puts one on all smartphones) you would still have pay per use data when not at home.

I work for AT&T and there's possibly a setting turned off. I don't have an iPhone anymore but from what I remember go to settings > general > mobile data and make sure it isn't turned off. Somewhere in the setting is mobile network or mobile data. Make sure thats ON.

If you have AT&T it could possible be a bad SIM card and needs to be replaced.

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