Prank Dial - The #1 prank call site on the web!
Fake Caller ID - Fake Caller ID app provides users with a spoof caller id, and two free voice changer calls on a daily basis to make a call to their friends and pranks them in the voice of their girlfriend right at their fingertips.
Spoof Card: Change Caller ID - Spoof Card: Change Caller ID app features voice changer filters so you can prank your family members without having to reveal your real identity in order to protect your privacy.
Change Voice While Calling - Change Voice While Calling is an app presented in the market by SmartApps Ltd.
Call Spoofer - Call Spoofer app helps users make a call on an unknown number by changing their caller Id, phone number, and voice to protect their privacy.
Prank-Owl - Prank call your friends online for free!