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

sam sung auction

Former Apple Employee Sam Sung Changed His Name to Avoid Attention

Wednesday October 22, 2025 4:44 pm PDT by
Back in 2012, an Apple retail employee named Sam Sung went viral because his name is similar to Samsung, one of Apple's main competitors. In a recent interview with Business Insider, he detailed that period in his life, how Apple responded, and he explained why he ultimately changed his name. Someone posted an image of Sung's Apple business card on Reddit in 2012, and it spread rapidly....
iOS 26

iOS 26.1 Coming Soon With These 8 New Features for Your iPhone

Wednesday October 22, 2025 6:15 am PDT by
The upcoming iOS 26.1 update includes a handful of new features and changes for iPhones, including a toggle for changing the appearance of the Liquid Glass design, "slide to stop" for alarms in the Clock app, and more. iOS 26.1 is currently in beta testing. The update will likely be released in the first half of November, and it is compatible with the iPhone 11 series and newer, but some...
iOS 26 Battery Glass Feature

iOS 26.1 Beta Liquid Glass Battery Drain Test: Tinted vs Clear Mode

Friday October 24, 2025 2:30 pm PDT by
In the fourth iOS 26.1 beta, Apple added a "Tinted" option that reduces the translucency of Liquid Glass for those who prefer a more opaque look. I saw some comments wondering whether the setting might preserve battery life, so I thought I'd do some testing. Test Settings I did four separate tests using the iPhone 17 Pro Max, and I kept the parameters as similar as possible. Here are the...
All Screen iPhone 2027 Feature 1

Report: Apple to Skip 'iPhone 19' Name for 'iPhone 20'

Thursday October 23, 2025 4:28 am PDT by
Apple's new iPhone lineup launched in the fall of 2027 will be called the "iPhone 20" models, rather than the "iPhone 19," according to research firm Omdia. Speaking at a conference in Seoul (via ETNews), Omdia Chief Researcher Heo Moo-yeol corroborated rumors that Apple plans to move the launch of its standard iPhone to the first half of the year and provided some additional clarity about...
trump white house ballroom

Apple Donating to Trump's $350M White House Ballroom Project

Thursday October 23, 2025 3:55 pm PDT by
Apple is one of several tech companies that will contribute to the construction of U.S. President Donald Trump's 90,000-square-foot ballroom, reports CNN. Construction began on the ballroom this week, and the White House's east wing was torn down. Trump claims that the ballroom will cost $350 million, and that it will be privately funded through donations. The cost has already increased $150 ...
apple wallet drivers license feature iPhone 15 pro

iPhone Driver's License Feature in Apple Wallet App Launches in Another U.S. State

Thursday October 23, 2025 7:44 am PDT by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Starting today, the feature is available to residents of West Virginia. To set it up, open the Wallet app and tap on the plus sign in...
cadillac lyric infotainment

GM to Remove CarPlay from All Future Vehicles, Including Gas Cars [Updated]

Wednesday October 22, 2025 11:34 am PDT by
General Motors began phasing out support for CarPlay in its electric vehicles back in 2023, leading to complaints from iPhone users, but the company has no plans to back down. In fact, GM is going further and plans to remove CarPlay from all future gas vehicles, too. In an interview with The Verge, GM CEO Mary Barra said that the company opted to prioritize its platform for EVs, but the...
iPhone Air

Report: 'Virtually No Demand' for iPhone Air

Wednesday October 22, 2025 3:22 am PDT by
Apple is "drastically" cutting production of the iPhone Air and shifting focus toward the iPhone 17 and iPhone 17 Pro models, Nikkei Asia reports. The business publication claims to have learned of a major cut to iPhone Air production motivated by weaker-than-expected consumer interest, nearly to "end of production levels." Despite early reports of the iPhone Air selling out within hours of...
maxresdefault

Apple's iPhone Air Experiment Fails as Supply Chain Cuts Production by 80%

Wednesday October 22, 2025 10:48 am PDT by
iPhone Air demand failed to meet Apple's expectations and the company's supply chain is scaling back shipments and production, reports Apple analyst Ming-Chi Kuo. Subscribe to the MacRumors YouTube channel for more videos. Suppliers are expected to reduce capacity by more than 80 percent between now and the first quarter of 2026, and some components with longer lead times will be discontinued ...

Top Rated Comments

canyonblue737 Avatar
52 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
52 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
52 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
52 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
52 months ago
Safety comes first! That's Priority #1
Score: 9 Votes (Like | Disagree)
liberte1776 Avatar
52 months ago
Game point to T-Mobile which apparently does not need to worry about this band?
Score: 9 Votes (Like | Disagree)