AT&T and Verizon Delay 5G Expansion to Address Aircraft Interference Concerns

AT&T and Verizon are delaying the rollout of a new 5G band in order to address concerns about interference with aircraft safety systems, reports The Wall Street Journal.

iphone 5g mmwave
The two companies were set to launch C-Band spectrum on December 5. The C-band covers radio frequencies between 3.7GHz and 4.2GHz, and it is key for the expansion of 5G networks. AT&T and Verizon are now working with the Federal Aviation Administration to ensure there will be no interference, delaying the 5G deployment until January 5.

On Tuesday, the Federal Aviation Administration issued a warning [PDF] about potential 5G interference with radar altimeters, technology used measure a plane's distance from the ground. In the document, the FAA confirms that there have not been "proven reports" about equipment interference in countries where the spectrum is already available, but the agency still has concerns.

The FAA is asking radio altimeter manufacturers to submit equipment details on devices that are used in airplanes, and it has suggested that companies who produce radio altimeters do detailed testing to determine if the hardware is susceptible to interference from C-band spectrum. Aircraft manufacturers have been asked to submit data on the radio altimeters that are in use and to do their own interference testing.

The CTIA, a trade group representing the wireless industry, has said that C-band spectrum can be safely used without causing interference to aviation equipment, but aviation groups have said that the 5G expansion could result in "major disruptions to passenger air travel, commercial transport, and critical helicopter operations."

AT&T spokesperson Margeret Boles said in a statement that AT&T plans to work with the FCC and FAA to understand the interference concerns. "It is critical that these discussions be informed by the science and the data," she said. "That is the only path to enabling experts and engineers to assess whether any legitimate coexistence issues exist."

Tags: AT&T, Verizon

Popular Stories

iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
iPhone 14 Pro Dynamic Island

iPhone 18 Pro Leak Adds New Evidence for Under-Display Face ID

Monday December 8, 2025 4:54 am PST by
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker. According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
iOS 26

Apple Seeds Second iOS 26.2 Release Candidate to Developers and Public Beta Testers

Monday December 8, 2025 10:18 am PST by
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found. Registered developers and public beta testers can download the betas from the Settings app on...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Monday December 1, 2025 2:40 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
Johny Srouji

Apple's Chipmaking Chief Johny Srouji Responds to Report About Him Potentially Leaving

Monday December 8, 2025 9:23 am PST by
Apple's chipmaking chief Johny Srouji has reportedly indicated that he plans to continue working for the company for the foreseeable future. "I love my team, and I love my job at Apple, and I don't plan on leaving anytime soon," said Srouji, in a memo obtained by Bloomberg's Mark Gurman. Here is Srouji's full memo, as shared by Bloomberg:I know you've been reading all kind of rumors and...
Johny Srouji

Apple Chip Chief Johny Srouji Could Be Next to Go as Exodus Continues

Sunday December 7, 2025 10:41 am PST by
Apple's senior vice president of hardware technologies Johny Srouji could be the next leading executive to leave the company amid an alarming exodus of leading employees, Bloomberg's Mark Gurman reports. Srouji apparently recently told CEO Tim Cook that he is "seriously considering leaving" in the near future. He intends to join another company if he departs. Srouji leads Apple's chip design ...
Intel Inside iPhone Feature

Apple's Return to Intel Rumored to Extend to iPhone

Friday December 5, 2025 10:08 am PST by
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone. In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
google pixel 10

Switching Between iPhone and Android Will Get Easier With New Apple and Google Collaboration

Monday December 8, 2025 11:10 am PST by
Apple and Google are teaming up to make it easier for users to switch between iPhone and Android smartphones, according to 9to5Google. There is a new Android Canary build available today that simplifies data transfer between two smartphones, and Apple is going to implement the functionality in an upcoming iOS 26 beta. Apple already has a Move to iOS app for transferring data from an Android...
Apple Fitness Plus expansion hero

Apple Fitness+ Coming to 28 New Regions With Digital Voice Dubbing

Monday December 8, 2025 6:19 am PST by
Apple today announced that Fitness+ is expanding to 28 new markets on December 15 in the service's largest international rollout since launch, accompanied by new language dubbing and a K-Pop music genre. Apple Fitness+ will become available in Chile, Hong Kong, India, the Netherlands, Singapore, Taiwan, and additional regions on December 15, with Japan scheduled to follow early next year....
Foldable iPhone 2023 Feature 1

Apple to Make More Foldable iPhones Than Expected

Tuesday December 9, 2025 9:59 am PST by
Apple has ordered 22 million OLED panels from Samsung Display for the first foldable iPhone, signaling a significantly larger production target than the display industry had previously anticipated, ET News reports. In the now-seemingly deleted report, ET News claimed that Samsung plans to mass-produce 11 million inward-folding OLED displays for Apple next year, as well as 11 million...

Top Rated Comments

canyonblue737 Avatar
54 months ago
Ok, just so people understand what this practically means... (I am an airline pilot)

1) the concern is with specific new 5G bands and won't shutoff 5G all around the nation.

2) the issue is in regards to radio altimeters that bounce a signal directly off the terrain below to measure that distance when the airplane is usually less than 1500 ft above the ground (think of a boat depth finder, but for planes.) we use this distance to more accurately guage height above terrain when low to the ground than conventional altimeters and use the data for a host of other systems including determining minimum approach heights, inappropriate descent rate warnings, windshear alerts and more.

3) this issue ONLY applies to 5G when it is near an airport and near a final approach path... perhaps a couple miles at most from the airport. it won't affect the rollout of 5G that isn't near airports as radio altimeters are only in use when close to an airport. it is true that providers like verizon seem to be prioritizing putting 5G and 5G ultra wideband near airports (to certainly seems the most common place i find it) so there is that, but it doesn't mean they can't put it elsewhere in the meantime.

4) it's likely there will turn out to be no issue and no interference, but let them check. if there is there might be ways to mitigate it but that would delay the rollout of the tech near airports.

for example is a proposed temporary 5G restriction zone around an airport in Canada... it isn't like this is a massive area we are talking about, and hopefully temporary.



Attachment Image
Score: 33 Votes (Like | Disagree)
JPSaltzman Avatar
54 months ago
AT&T: "But in the meantime, you won't mind the 5G surcharge on your monthly bill, will you?"
Score: 32 Votes (Like | Disagree)
LawJolla Avatar
54 months ago
As a pilot, the "phones off" was always silly. (I heard it was really the phone companies pressuring the FAA because the phones quickly switching towers wrecked havoc on their infrastructure)

But the radio altimeter could be a thing. Radio altimeters are crucial for low visibility / "auto land" functionality, and we need to be 100% sure that a 5G tower + phones on final approach doesn't change the altimeter's readings.
Score: 17 Votes (Like | Disagree)
Born Again Avatar
54 months ago
anyone old enough to remember when you had an incoming cellphone call your speakers would go BZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Score: 12 Votes (Like | Disagree)
TheYayAreaLiving ?️ Avatar
54 months ago
Safety comes first! That's Priority #1
Score: 9 Votes (Like | Disagree)
liberte1776 Avatar
54 months ago
Game point to T-Mobile which apparently does not need to worry about this band?
Score: 9 Votes (Like | Disagree)