Mike Sievert
President & Chief Executive Officer at T-Mobile US
Okay, thanks, Jud, and good morning, everybody. If you're watching on our webcast, you can see we're coming to you from New York City, and I'm here with several members of my senior leadership team, and we're looking forward to discussing another quarter of great results.
Our strategy to deliver the best network, coupled with the best value and the best customer experience, has remained remarkably consistent, and our Q3 results again show how well that strategy is working with another quarter of industry-leading customer and financial growth. I want to thank our amazing team nationwide. We have tackled a lot of change together recently to position our company for success in the future and it hasn't all been easy, but this team showed once again what loving customers looks like and how that simple philosophy translates into success.
I'm sure you've seen the numbers already. So I'm going to spare you the greatest hits album of all the quarterly results. And just [Technical Issues]. First, as we announced yesterday, I am so proud of our network team for reaching our audacious goal of 300 million people covered with dedicated mid-band 5G over two months ahead of our year-end target. We announced this goal nearly three years ago, and then we got to work and got it done. And to this day, no one else in our industry has stated any plans to match it at anytime in the future.
I know it may get confusing with others celebrating their C-band deployments, which might have the casual observer believe our network lead could be narrowing. But the opposite is true. In fact, even after their C-band deployments, according to the Ookla, T-Mobile's nationwide median speeds were double the next competitor speeds in September, double in September. And our mid-band 5G square mile coverage is also double then next closest competitor, meaning others still have a lot of wood to chop beyond just population dense pockets to ever reach the expansive geography where T-Mobile is today. And we have more spectrum dedicated to 5G than anyone else, before we've even begun to deploy our C-band, our 3.45 gigahertz spectrum, or Auction 108, 2.5 gigahertz licenses, let alone reforming our AWS.
Listen, we started the 5G era two years ahead of the competition, and today, we remain two years or more years ahead, and I predict that two years from now, we still will be. What all this translates to is a superior customer experience. We're rapidly putting our spectrum resources to work for the benefit of consumers and businesses, and we're doing it with the best capital efficiency in the industry.
The most exciting part many prospective customers are only just beginning to take notice that T-Mobile is the overall network leader, leaving lots of growth runway ahead. And we're also expanding on our long-held fame for delivering the best-value. Our latest un-carrier move is freeing customers locked into three-year contracts, and our new Go5G rate plans are delivering the most feature-rich options in wireless. Phone Freedom has turned out to be one of our most exciting un-carrier moves ever, and it continues to bring high-quality switchers to T-Mobile. As you could see in our industry-leading postpaid account growth.
We're also executing on our ARPA revenue growth strategy, posting another strong quarter, well over plus 1% versus year ago in revenue per account on the strength of Go5G Plus and multiple products. Some have asked if our new higher-value rate plans are most popular with consumers, and why isn't ARPU growing faster too. And I'll point out that consumer ARPU does continue to grow even after offsets from growing segments like 55-plus in military, and consumer overall is being partially offset by profitable growth in the enterprise space at somewhat lower ARPUs, but attractive CLVs, a development that's contributing well to our financial growth. And we're doing all of this, within a backdrop of a wireless industry that continues to grow service revenues and cash flows, while simultaneously seeing customers win from a healthy competition that delivers more value and better networks.
In fact, this industry produces cash flow and EBITDA, much higher than five years ago, while at the same time, customers are enjoying three times more data at four times higher speeds, while paying just a fraction of the price per unit consumed versus before. And that's before factoring in the expanded device promotions now routinely offered. A vibrant profitable business delivering rapidly improving network service and value. That's the win-win 5G dividend nobody is talking about, and it helps to showcase why T-Mobile's 5G leadership is so important.
This is certainly true in T-Mobile for business, where we had the highest-ever account net adds overall and our highest-ever postpaid nets in enterprise based on the strength of our 5G-enabled solutions. Consumers are also choosing T-Mobile above all others. Prime networks seekers in the Top 100 markets increasingly recognize that T-Mobile offers the best combination of network coverage and capacity to meet their needs. And for the first time ever, T-Mobile also won the highest share of switchers in smaller markets and rural areas in [Technical Issues].
Broadband also had another strong quarter. We now serve over 4.2 million customers, who are enjoying a great experience with net promoter scores that remain more than 30 points higher than cable, with churn improving year-over-year as well. We remain very much on pace for our longer-term goals with 5G broadband.
Overall, our customer growth strategy remains differentiated and durable, resulting in industry-leading service revenue growth both at the total company level and at the postpaid service revenue level where most of the value is created, which grew more than 6% or more than 1.5 times the growth rate of peers. That topline leadership coupled with our synergy realization and focus on cost efficiencies drove double-digit growth in core adjusted EBITDA with the highest free cash flow conversion in the industry.
This allows us to not only raise our guidance for this year again, it also gives us excitement and confidence in the future. With our significant growth opportunities continue to -- continuing to scale with lots of room to run it sets us up for sustained leadership in both customer and service revenue growth as we look ahead. And we see opportunities amid the rapidly changing technology landscape as well, all across our business to drive further revenue growth, margin expansion and free cash flow growth that'll allow us to fund our growth investments in our customers and network, as well as provide the potential for substantial ongoing shareholder returns.
This amazing customer-loving team continues to perform beautifully with so much exciting potential ahead showing why it's not just a tag line when we say that for customers, employees and investors alike. It's better over here at T-Mobile.
Okay, Peter, over to you to talk about our key financial highlights and an update on our guidance.