Shows up on caller ID as "DIR ASST MI" or something similar. We get periodic calls ID'd as Directory Assistance from Michigan, Ohio, and California. From what I've seen on similar calls on this site and others, this is the old "I'm from Microsoft and we've found something evil on your computer" scam. At any rate, a 555 exchange is bogus (this is why movies tend to use 555 as a phone number) and, more importantly, Directory Assistance from anywhere is not going to call to say "Hi".