Despite ongoing skepticism about the limitations of using millimeter wave (mmWave) spectrum to deliver speedy broadband services, a top industry analyst came away bullish about Starry's technology and the economics underpinning its business.

In a blog post recounting a visit with Starry Inc. this week, MoffettNathanson LLCanalyst Craig Moffett said the update from the startup, now that it has some real-world data about its business, was "eye-opening."

"The short answer is... the technology, the economics, and the business itself all appear to be working," Moffett wrote.

That summation arrives as Starry, which views itself as a 5G player, prepares to launch its cap-free, low-cost fixed wireless broadband service to almost 20 more markets following initial rollouts in parts of its home town of Boston, as well as New York, Los Angeles and Washington, D.C. Other markets in the deployment plan include Denver; Cleveland; Chicago; Houston; Dallas; Seattle; Detroit; Atlanta; Indianapolis; San Francisco; Philadelphia; Miami, Memphis; Phoenix; Minneapolis; Manchester, N.H.; Portland, Ore.; and Sioux Falls, S.D. (See Starry Scores $100M More for Wireless Broadband.)

Targeting apartment buildings and other multiple-dwelling units early on with plans to offer service to single-family homes in the second half of 2019, Starry has been using mmWave signals (operating a 600MHz slice of spectrum in the 37GHz - 38.6GHz band) to deliver symmetrical speeds of 200 Mbit/s, starting at $50 per month. Starry has also filed to participate in the FCC's spectrum auction in the 24GHz band. (See Starry Sets NYC Launch, Aligns With Real Estate Developer , Starry Fixed Wireless Debuts at $50/Month and Cable Nearly a No-Show in mmWave Auction.)