Sprint, the third-largest carrier in the US, announced on Monday that it has expanded its 4G LTE network to 70 new cities, bringing its total number of supported cities to 300.

The list of 70 cities includes Green Bay, Wis; Orlando, Fla; San Diego; and St. Louis. For the entire list of newly added cities, visit Sprint’s website.

As a part of the “Sprint Spark” initiative, the carrier is also upgrading existing markets with a new network capability that “uses three spectrum frequencies to deliver peak 4G LTE wireless data speeds of 50-60Mbps.” This initiative is also expected to improve call quality and clarity.

From Sprint’s press release:

“In 2013, we made major improvements across our 3G and 4G LTE network,” said Bob Azzi, chief network officer. “In the growing number of markets where the upgrades are nearly complete, our customers are noticing. Re-engineering our entire network has been a big undertaking, but now it’s delivering tangible benefits to our customers. With the announcement of Sprint Spark, the increasing availability of 4G LTE and the improvements we have made to our voice network, we’re full speed ahead for 2014.”

Sprint launched its LTE network pretty late compared to Verizon and AT&T, and even with this rollout, it remains behind rival carriers when it comes to LTE coverage. Verizon recently tripled its LTE capacity in some US cities, and bumped speeds to as much as 80 Mbps.

If you’re a resident of one of the cities included in Sprint’s recent 4G LTE rollout, let us know your experience in the comments.