AT&T, MCI Worldcom and Sprint still control 90% of the entire market today. Sprint (10%), MCI Worldcom (20%) and AT&T with a whopping 60% share. Others share the remainig 10% among themselves. This latest round of price cutting should prove to be interesting, though so far only Quest has responded. Sprint is supposedly trying to hold firm with their Nightly Nickel program or whatever they call it!