Solana Beach, California (CNN) -- I dont tlk on th fone. txt im fb me.
I tried to reach my teenage daughter the other day. I left a voice mail, sent an e-mail message and finally texted her and told her to check both and call me back.
Seconds later, she texted back one letter: "K." She is 19 and has been sending and receiving upwards of 3,000 texts per month. One month, she hit 7,500! She is not unusual at all.
According to Nielsen Mobile, in the first quarter of 2009, the average U.S. teen made and received an average of 191 phone calls and sent and received 2,899 text messages per month. By the third quarter, the number of texts had jumped to a whopping 3,146 messages per month, which equals more than 10 texts per every waking non-school hour. (At the beginning of 2007, those numbers were 255 phone calls and 435 text messages.) Preteens sent and received 1,146 texts per month.