London: Teen sensation Justin Bieber is facing legal action over a phone prank.

The 18-year-old posted a phone number on twitter with the last digit missing and told his 19 million followers on the microblogging site to call him, as reported.

As fans tried to guess the remaining number, two Texans claim they were plagued with phone calls from teenage girls at all hours of the day.

The tweet was quickly deleted but the two say the stunt was "reckless" and that the harassment continued.

The lawyer acting for the pair said her clients' patience "wears thin" after receiving over 1,000 phone calls and they want compensation for all the problems caused by the prank.

They also suggest Bieber could make it up to the disgruntled duo with an apology, concert tickets and cash.