Your iPhone's service plan could cost as much as $20 more per month as AT&T hikes its prices starting next month

[iMore.com]

AT&T has warned customers of its retired unlimited plans are about to pay more — up to $20 per month depending on the number of lines they have.

Your iPhone's service plan could cost as much as $20 more per month as AT&T hikes its prices starting next month : Read more