AT&T and Verizon Now Rolling Out C-Band 5G Spectrum - MacRumors
Skip to Content

AT&T and Verizon Now Rolling Out C-Band 5G Spectrum

Following weeks of delays due to concerns from the aviation industry, Verizon and AT&T were today able to begin deploying C-Band 5G spectrum to improve the availability of 5G connectivity for users across the United States.

iphone 5g mmwave
AT&T's C-Band spectrum is live in limited parts of eight metro areas that include Austin, Chicago, Dallas Ft. Worth, Detroit, Houston, Jacksonville, Orlando, and South Florida. AT&T is taking a careful approach to the rollout, but the carrier says that C-Band spectrum will "expand rapidly" as part of a ramp up in its "thoughtful and efficient deployment." iPhone users who have access to AT&T's C-Band network or previously existing mmWave connectivity will see a "5G+" indicator in the iPhone's cellular status bar.

As for Verizon, the company earlier this month announced plans to expand its 5G Ultra Wideband service to 1,700 cities later in January, and that expansion started today with the launch of C-Band spectrum. Verizon users on Reddit are sharing details on where Verizon's 5G connectivity has suddenly improved, noting the locations where C-Band connectivity is live. Verizon users will see a "5G UW" indicator.

There are reports from across the country, including Los Angeles, Nashville, Salt Lake City, Chicago, Minneapolis, Rochester, and many other smaller cities. Verizon said that it expected the C-Band rollout to bring faster 5G speeds to more than 100 million people, but has not yet shared a C-Band coverage map.

AT&T's 5G+ and Verizon's 5G Ultra Wideband are up to 10x faster than LTE speeds and can hit upwards of a gigabit per second.

Verizon and AT&T are both limiting their C-Band deployment in areas that are near airport runways to give airlines and the FAA more time to figure out whether there are issues with airplane altimeters.

Earlier this week, major U.S. airlines penned an urgent letter warning that the 5G rollout could cause a "catastrophic" crisis resulting in cancelled, delayed, and diverted flights.

The FAA has implemented buffer zones around 50 major airports with wireless transmitters close to runways, but for the time being, AT&T and Verizon will block off a two mile zone around affected airports to address concerns.

Airlines and the two carriers have expressed frustrations over the FAA's lack of action, as the agency has had years to prepare. C-Band spectrum went up for auction in late 2020, with Verizon paying $45 billion and AT&T paying $23 billion for access.

"We are frustrated by the FAA's inability to do what nearly 40 countries have done, which is to safely deploy 5G technology without disrupting aviation services, and we urge it to do so in a timely manner," AT&T said in a statement.

Tags: 5G, AT&T, Verizon

Popular Stories

Apple Event Logo

Apple to Launch These 15+ New Products Later This Year

Friday March 27, 2026 2:03 pm PDT by
March has been an incredibly busy month for Apple, with the company unveiling more than 10 new products and accessories. We said hello to the MacBook Neo at the start of the month, and we bid farewell to the Mac Pro at the end of it. Nevertheless, there is still a lot more to come this year. Beyond the usual annual updates to iPhones and Apple Watches, Apple's all-new smart home hub is...
iOS 26

iOS 26.4 Adds Two New Features to CarPlay

Tuesday March 24, 2026 1:55 pm PDT by
iOS 26.4 was released today, and it includes a couple of new features for CarPlay: an Ambient Music widget and support for voice-based chatbot apps. To update your iPhone 11 or newer to iOS 26.4, open the Settings app and tap on General → Software Update. CarPlay will automatically offer the new features so long as the iPhone connected to your vehicle is running iOS 26.4 or later....
Mac Pro Feature Teal

Apple Confirms Mac Pro Is Dead, No Future Models Planned

Thursday March 26, 2026 2:04 pm PDT by
Apple has discontinued the Mac Pro and has removed the machine from its website, reports 9to5Mac. Apple said it does not plan to design a new version of the Mac Pro, and no new model will be coming in the future. The Mac Pro was last updated in 2023, which was when Apple added an M2 Ultra Apple silicon chip, but the chassis has not been refreshed since 2019. Apple redesigned the Mac Pro to...

Top Rated Comments

antiprotest Avatar
55 months ago
What doesn't ATT call it 6GE to get ahead?
Score: 24 Votes (Like | Disagree)
55 months ago
I’m tired of the FAA over this issue.

1. They’ve had years and years to prepare for this and sat on their hands.
2. These bands are used in many other countries like Japan without issue.
3. A large guard band ~200MHz is in place and carriers have agreed not to deploy around plane landing corridors.
4. The FAA, airlines, Airbus/Boeing should have tested the altimeters on all relevant aircraft to confirm they are working fine (which they should if they were designed and maintained properly), instead many aircraft altimeters are still untested.

Strikes me as hollow from the same FAA who OK’d the 737 Max having a life critical system dependent on a single point of failure.
Score: 22 Votes (Like | Disagree)
55 months ago
iPhone users who have access to AT&T's C-Band network or previously existing mmWave connectivity will see a "5G+" indicator in the iPhone's cellular status bar.

AT&T showing uncharacteristic restraint in not using "6G" as the indicator for their 5G rollout :rolleyes:
Score: 19 Votes (Like | Disagree)
55 months ago
I still don't understand why this was a big issue. The airlines and FAA shouldn't have been surprised by this rollout.
Score: 9 Votes (Like | Disagree)
ccsicecoke Avatar
55 months ago
Stopped taking airplanes since the Pandemic anyway.

Amtrak sleeper train is my only choice of domestic travel in foreseeable future
Score: 9 Votes (Like | Disagree)
Analog Kid Avatar
55 months ago

I’m tired of the FAA over this issue.

1. They’ve had years and years to prepare for this and sat on their hands.
2. These bands are used in many other countries like Japan without issue.
3. A large guard band ~200MHz is in place and carriers have agreed not to deploy around plane landing corridors.
4. The FAA, airlines, Airbus/Boeing should have tested the altimeters on all relevant aircraft to confirm they are working fine (which they should if they were designed and maintained properly), instead many aircraft altimeters are still untested.

Strikes me as hollow from the same FAA who OK’d the 737 Max having a life critical system dependent on a single point of failure.
They've had less than two years since the March 2020 Report and Order assigning C-band to 5G. Not even "years" let alone "years and years".

Please link to the Japanese regulations on the 3.7-3.98GHz band around airports.

200MHz at 4GHz is not a "large guard band". The radar being used were designed when the only thing in these bands were transmissions from satellites. Now they need to contend with terrestrial broadcasts near runways.

The FAA, airlines, and manufacturers did test altimeters and have repeatedly said this will be a problem. T-Mobile disagreed. The FCC decided to listen to T-Mobile.
Score: 5 Votes (Like | Disagree)