I have no way of knowing for certain or not but this is supposedly and purportedly and allegedly the internal White House telephone directory which basically bypasses the main White House switchboard. UInh Hunh?
Use at your own risk and if you do decide to call someone and they answer the telephone please have the common sense and decency to be polite and courteous regardless of how much you would want to rant and rave. Just because the White House doesn't treat Americans courteously does not mean you should do the same. You unlike them are above that - right? Uh Right?