The city of Marquette, Mich., will be Verizon's 400th city on LTE, and Verizon is planning a celebration of the event, said Nicola Palmer, CTO for Verizon Wireless, in a press conference at the MobileCon trade show here.

Verizon has both the largest LTE network in the nation and the world, Palmer note. The carrier began its LTE rollouts two years ago, and said in August that it had reached 75% of the U.S. population with LTE service. AT&T is on track to reach 100 LTE cities by year's end, and Sprint has similar plans "in coming months."

By the end of 2013, Verizon will have reached all of the locations where it has a 3G network. LTE speeds on Verizon are 10 times faster than 3G, and the company advertises that it offers 5 Mbps to 12 Mbps on downloads and 2 Mbps to 5 Mbps on uploads.

Palmer also said that by the end of 2013, Verizon plans to deploy voice services over the LTE data network. "We tested Live Volte (Voice over LTE) a few weeks ago and had an HD quality call," she said. "We're pretty excited about it."

Verizon is also sending about 35% of its data over LTE and expects to reach 50% soon, she said.