AT&T Begins Warning High-Volume Data Users of Upcoming Throttling - MacRumors
Skip to Content

AT&T Begins Warning High-Volume Data Users of Upcoming Throttling

In late July, AT&T announced that as of October 1st it would begin throttling data speeds for customers on unlimited data plans who registered in the top 5% of heaviest data users. While AT&T no longer offers unlimited data plans, customers who had signed up for such plans prior to their discontinuation, including many iPhone users, have been grandfathered in and allowed to keep their unlimited plans.

att throttle warning
Reddit user "TheReverendZ" yesterday reported (via 9to5Mac) that he had received a text message from AT&T warning him that he had fallen into that top 5% group and encouraging him to use Wi-Fi to help avoid throttling of his data speeds. TheReverendZ notes that he typically uses 10-12 GB of data per month, as he does not have home Internet service, while "skelatwork" reports that he received a similar notice when he had passed approximately 11 GB of data for the month.

AT&T has noted that it will provide multiple warnings and a grace period before beginning to throttle data speeds, and it now appears that the carrier has begun the warning process. Customers subject to throttling will retain access to unlimited data but will see their speeds reduced until the start of the next billing cycle.

Related Forum: iPhone

Popular Stories

macOS 27 next to MacBook Pro Running macOS 27

Apple Announces 'Full Disk Access' Changes on macOS Due to AI Agents

Friday October 2, 2026 12:59 pm PDT by
In a post on its developer news website today, Apple announced that it will be introducing "additional controls" for the "Full Disk Access" setting on macOS due to new risks posed by AI agents. This announcement comes amid the rise of always-on AI agents like Meta's Muse and OpenAI's Dots, which have prompted privacy concerns. "Some developers are using Full Disk Access in ways that could...
iPhone 18 Pro Max Glacier Camera

Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced

Friday October 2, 2026 8:21 pm PDT by
Apple today confirmed that a "small number" of iPhone 18 Pro Max users on the AT&T network have experienced an issue that causes the device to lose cellular service, thereby preventing phone calls, text messages, and data from working. Thousands of users complained about the issue across the Apple Support Community and other platforms. Apple said it released iOS 27.0.1 earlier this week and...
iPhone 18 Pro Max ATT

AT&T Acknowledges iPhone 18 Pro Max Issues: Update 'Immediately'

Thursday October 1, 2026 8:42 pm PDT by
In a text message sent to customers today, AT&T acknowledged that some iPhone 18 Pro Max devices on its network are experiencing cellular issues. AT&T said that customers should immediately update to iOS 27.0.1, despite the fact that many affected users have said that the update does not resolve the issues. There are now at least thousands of users that have experienced this problem,...

Top Rated Comments

miles01110 Avatar
196 months ago
Really.

I was under the (mistaken) impression that when one pays for unlimited access, they get unlimited access.
Throttled access ≠ No access. And as always if you're dissatisfied, switch to Sprint. Voting with your wallet always works.
Score: 22 Votes (Like | Disagree)
TBi Avatar
196 months ago
Interesting, being in the top 5% is relative. If the top 5% reduce their internet consumption then the data limit for being in the top 5% reduces. So the more you reduce your consumption the lower the overall limit decreases.

So if everyone is downloading only 1kb per month, and someone downloads 2kb then they would be in the top 5%.

I wonder if they have a 'lower' limit?
Score: 16 Votes (Like | Disagree)
196 months ago
Seems reasonable to me, as much as I dislike AT&T.

Really.

I was under the (mistaken) impression that when one pays for unlimited access, they get unlimited access.
Score: 15 Votes (Like | Disagree)
BC2009 Avatar
196 months ago
This is almost a perfect way of handling this. AT&T is still providing unlimited access (like they promised) just at a reduced speed so you don't degrade the service of 19 in 20 for the sake of the 1 in 20 who wants to download 10GB of data per month (compared the average user which is typically under 250MB).

Effectively the guy using 10GB of data per month is throttling everybody else's service downward since there is only so much network pipe. And regardless of what AT&T does there will always be only so much network pipe. The more you increase bandwidth the more people will consume. So they need to throttle people who are over-using it and they clearly can't give any sort of minimum guarantees on bandwidth since there are so many variables.

Howerver, the problem with this is that it can't just be the top 5% of users. It needs to be two conditions:
1) You are in the top 5% of usage
2) Your network usage is greater than X GB per month (say 4 or 5 GB)

Why? Because if all these folks in the top 5% reduce their usage next month by 10%, they will likely STILL be in the top 5%. That's how percentages work. If everybody using AT&T only used 2GB of data per month on their unlimited then the person in the top 5% would be the person who used 2.01GB.

So AT&T's current policy will eventually fail if the top users seriously start dropping their usage because they will all come down together and therefore the net effect is to ask them to drop even further the next month.

I personally think that if you are using less usage than their current premium data plan (e.g.: 4GB) that they should never subject you to this throttling. Since effectively the "unlimited" plan's closest equivalent in the new structure is the 2GB + 2GB tethering plan (i.e.: the current top premium data plan).

So this is a good first step from AT&T, but it comes up short in the long run if it actually is effective in getting folks to reduce their usage.
Score: 10 Votes (Like | Disagree)
196 months ago
10 GB of data? Good lord.

Throttling sounds reasonable in this case.

Most people who have unlimited don't really need it anyway. It's one of those psychological things.
Score: 10 Votes (Like | Disagree)
miles01110 Avatar
196 months ago
Seems reasonable to me, as much as I dislike AT&T. Every other ISP has fair use policies to prevent the select few from affecting everyone else.
Score: 10 Votes (Like | Disagree)
Latest Stories
Apple's Newest Macs Just Got Their Biggest Price Cuts Yet on Amazon
Apple's Newest Macs Just Got Their Biggest Price Cuts Yet on Amazon
1 hour ago
Apple Watch Prime Day Deals Arrive With New All-Time Low Prices for Series 12 and Ultra 4
Apple Watch Prime Day Deals Arrive With New All-Time Low Prices for Series 12 and Ultra 4
2 hours ago
Apple Releases MagSafe 3 Charging Cable Firmware Update
Apple Releases MagSafe 3 Charging Cable Firmware Update
2 hours ago
AirPods Max 2 Drop to $429 in All Colors for Prime Day
AirPods Max 2 Drop to $429 in All Colors for Prime Day
2 hours ago
Apple Quietly Triples iCloud Mail Alias Limit to Nine
Apple Quietly Triples iCloud Mail Alias Limit to Nine
2 hours ago
Mac Users Reclaim 12GB+ of Storage With Apple Intelligence Removal Tool
Mac Users Reclaim 12GB+ of Storage With Apple Intelligence Removal Tool
21 minutes ago
iPhone Duo Makes Focus Modes Easier to Toggle From the Lock Screen
iPhone Duo Makes Focus Modes Easier to Toggle From the Lock Screen
4 hours ago
EU iPhone and iPad Users Could Still Face Months-Long Wait for Siri AI
EU iPhone and iPad Users Could Still Face Months-Long Wait for Siri AI
5 hours ago
Today Marks the 15th Anniversary of Steve Jobs' Death
Today Marks the 15th Anniversary of Steve Jobs' Death
5 hours ago
iPhone 18 Pro's Triple Live Activity Support Comes With a Catch
iPhone 18 Pro's Triple Live Activity Support Comes With a Catch
6 hours ago
Apple's New CEO John Ternus is Making Product Design a 'Major Priority'
Apple's New CEO John Ternus is Making Product Design a 'Major Priority'
12 hours ago
Apple Hiring 'iCup' Specialist
Apple Hiring 'iCup' Specialist
12 hours ago
MacBook Pro With OLED Display Rumored to Be 'Significantly Lighter'
MacBook Pro With OLED Display Rumored to Be 'Significantly Lighter'
13 hours ago
Apple Event Reportedly Planned for October 13
Apple Event Reportedly Planned for October 13
14 hours ago
Amazon Launches Early Prime Day Discounts on AirPods, iPad, MacBook Air, and More
Amazon Launches Early Prime Day Discounts on AirPods, iPad, MacBook Air, and More
2 hours ago
AirPods Pro 3 Hit Record Low $179 Price During Early Prime Day Sale
AirPods Pro 3 Hit Record Low $179 Price During Early Prime Day Sale
23 hours ago
Top Stories: Apple Smart Home Launch on October 13, iPhone Duo Production Issues, and More
Top Stories: Apple Smart Home Launch on October 13, iPhone Duo Production Issues, and More
2 days ago
Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced
Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced
2 days ago
Apple Announces 'Full Disk Access' Changes on macOS Due to AI Agents
Apple Announces 'Full Disk Access' Changes on macOS Due to AI Agents
3 days ago
AT&T and Apple Just Took Steps Toward Fixing iPhone 18 Pro Max Issue
AT&T and Apple Just Took Steps Toward Fixing iPhone 18 Pro Max Issue
3 days ago
AT&T on iPhone 18 Pro Max Issues: 'We Are Working With Apple'
AT&T on iPhone 18 Pro Max Issues: 'We Are Working With Apple'
3 days ago
Upgrading From an Older Apple Watch? Here's How the New Features Stack Up
Upgrading From an Older Apple Watch? Here's How the New Features Stack Up
3 days ago
Beats 360 Cushion Kits and Apple Accessories See Early Prime Day Price Drops
Beats 360 Cushion Kits and Apple Accessories See Early Prime Day Price Drops
3 days ago
Apple Store in UK Reopening on iPhone Duo Launch Day
Apple Store in UK Reopening on iPhone Duo Launch Day
3 days ago
AT&T Acknowledges iPhone 18 Pro Max Issues: Update 'Immediately'
AT&T Acknowledges iPhone 18 Pro Max Issues: Update 'Immediately'
3 days ago
New 'AirFly Drive' Accessory Turns Wired CarPlay Into Wireless CarPlay
New 'AirFly Drive' Accessory Turns Wired CarPlay Into Wireless CarPlay
4 days ago
Apple Shares Photos Shot on iPhone Duo
Apple Shares Photos Shot on iPhone Duo
4 days ago
Apple Says iPhone Duo Has Replaceable 'Cover Layer'
Apple Says iPhone Duo Has Replaceable 'Cover Layer'
4 days ago
Apple's Smart Home Camera Will Apparently Have 'No Video Recording'
Apple's Smart Home Camera Will Apparently Have 'No Video Recording'
4 days ago
Apple TV Just Updated Its Selection of 'Bonus' Movies
Apple TV Just Updated Its Selection of 'Bonus' Movies
4 days ago