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Having a data plan with a cellular provider means never having to worry about getting access to the network. However, unless you’re paying for unlimited access (lucky you!), you should be worrying about going over whatever maximum amount of data usage your plan provides per month. That’s because going over your data max means you start paying through the nose for each megabyte, and you can run up a hefty bill in no time.

To avoid that, keep track of your cellular data usage by following these steps:

1 Open the Settings app.

2 Tap Cellular. The Cellular settings appear.

3 In the Cellular Data section, read the Current Period and Current Period Roaming values.

4 If you’re at the end of your data period, tap Reset Statistics to get a fresh start for the new period.