AT&T imposes another $5 price hike on grandfathered unlimited data plans

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AT&T is imposing another $5-per-month price increase on customers who have held onto a decade-old grandfathered unlimited data plan. The new price will be $45 a month.

The data plan's price was $30 monthly for seven years until AT&T raised it to $35 in February 2016. A second $5 bump brought the price to $40 a month in January 2017. The third $5 increase in three years will kick in next month.

"Customers who have a grandfathered $40 data plan will receive notifications of a $5 per month rate increase for the data plan," AT&T said in the price increase announcement. "The rate increase will take effect starting with the customer's July, 2018 service."

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