An American teenager sent almost 500 text messages a day last month, leaving her father with a phone bill of 440 pages.

Reina Hardesty, 13, sent 14,528 text messages in December - about 470 text messages a day, at an average of a message every two minutes if she was awake for 15 hours each day, the New York Post said.

Her father, Greg, said he was shocked to receive a 440 page phone bill last month.