Mobile's chief executive on Wednesday called the recent U.S. auction of airwaves "a disaster" for American consumers as he took aim at rules that allowed Dish Network Corp to partner with companies that may qualify for some $13 billion in discounts. Satellite provider Dish and biggest U.S. wireless carriers Verizon Communications Inc and AT&T Inc won most of the licenses in the record-breaking $45 billion auction of spectrum that ended last month.