MattyB's phone number is 1-267-312-9545 and Matty B you are so lucky my mom and dad do not allow me to have YouTube and I am 13 teen.So you are 3 year younger then me.posted over a year ago. hi I'm mikaylia.682) 628-6520 is not Matty B's number. I know this for a fact because it’s my number and no I'm not Matty B. This is Michael from Texas.