Verizon Wireless today confirmed that it will cease offering unlimited data plans starting next month. "We will move to a more usage based model in July," said Verizon spokesperson Brenda Raney in an email sent to AllThingsD. "We’ll share more later." Verizon has mentioned several times this year already that it intends to move away from unlimited plans in favor of tiered plans. Before today, it had not said when the change will occur.