My iPhone 16 is using so much mobile data

I’ve detected a very hige use of mobile data from my phone. In the menu it sais This Period: 2,3 TB and Shared Internet 1, 50 TB. I want to know a) how long a period is 2) who to contact about this


[Re-Titled by Moderator]

Original Title: very high and unknown use of mobile data

iPhone 16, iOS 18

Posted on Aug 31, 2025 11:02 PM

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Question marked as Top-ranking reply

Posted on Sep 1, 2025 12:37 AM

There is nothing to worry about. Those statistics count from the date at the bottom(usually says “Last reset at xx:xx, dd/mm/yyyy”)


When is the date? If it’s years ago then I wouldn’t worry but if it’s recently then I would contact them.


Who is your data provider?


If you’re struggling to find it again then scroll to the bottom of the Mobile Data Settings page then take a screenshot to post here

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Question marked as Top-ranking reply

Sep 1, 2025 12:37 AM in response to Tor222

There is nothing to worry about. Those statistics count from the date at the bottom(usually says “Last reset at xx:xx, dd/mm/yyyy”)


When is the date? If it’s years ago then I wouldn’t worry but if it’s recently then I would contact them.


Who is your data provider?


If you’re struggling to find it again then scroll to the bottom of the Mobile Data Settings page then take a screenshot to post here

Sep 2, 2025 7:46 AM in response to Tor222

Tor222 wrote:

I’ve detected a very hige use of mobile data from my phone. In the menu it sais This Period: 2,3 TB and Shared Internet 1, 50 TB. I want to know a) how long a period is 2) who to contact about this

The "period" is however long it has been since you reset it. The phone doesn't know anything about your billing dates. You have to reset it manually every month if you want it to reflect what you did in your billing period. The reset option is all the way at the bottom of the page.


I would note that your carrier is not billing you based on what you see on that screen. They are billing you based on their records.

Sep 2, 2025 8:21 AM in response to IdrisSeabright

IdrisSeabright wrote:


Tor222 wrote:

I’ve detected a very hige use of mobile data from my phone. In the menu it sais This Period: 2,3 TB and Shared Internet 1, 50 TB. I want to know a) how long a period is 2) who to contact about this
The "period" is however long it has been since you reset it. The phone doesn't know anything about your billing dates. You have to reset it manually every month if you want it to reflect what you did in your billing period. The reset option is all the way at the bottom of the page.

I would note that your carrier is not billing you based on what you see on that screen. They are billing you based on their records.

My T-Mobile account resets usage at the start of each billing cycle, automatically.

Sep 2, 2025 8:53 AM in response to Lawrence Finch

Lawrence Finch wrote:

My T-Mobile account resets usage at the start of each billing cycle, automatically.

I stand corrected. Verizon doesn't do that. My last reset was 7/14/2018. That even predates the current hardware.


Frankly, it's not something I look at much. Even though unlimited data isn't truly unlimited, I don't use enough to get throttled.

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My iPhone 16 is using so much mobile data

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