The carrier could be racing to set up network support for a , that is rumored to support 4G LTE, some bloggers have said. Verizon would not comment on that speculation, however, referring questions about the to instead.

"We're aggressive in the deployment of 4G LTE because we have a huge first-to-market advantage - more than a year - over what AT&T says it's going to be building eventually," said the Verizon spokesman Jeffrey Nelson, in an email.

He added that "our customers are using LTE big time. They love the speed and huge latency improvements. LTE is extremely efficient in carrying data."

Less than a week ago, Verizon said it had to its LTE footprint, noting it had then reached 117 cities and half the U.S. population with LTE reaching 160 million Americans. Verizon's LTE network supports download speeds of 5 Mbps to 12 Mbps and upload speeds of 2 Mbps to 5 Mbps.

The 25 added locations named on Monday were listed in several press releases for each different area, bringing the total to 142 cities and regions. Also Monday, Verizon said it would expand coverage in Cleveland on Sept. 15 and another city to be named later.