We pull usage data from the network every four hours for most accounts. It is at 15-minute increments if you routinely use more data. You may not be able to view usage info for the first day of a new bill period until later on in the day. Usage display shows time in terms of GMT (Greenwich Mean Time) time zone, which is behind U.S. time zones.
Good to know: Trained and specialized AT&T lab engineers check the accuracy of our system on a regular basis.
Data measurement and samples
A gigabyte shows how much data you send and receive over the network. It’s not how long you spend on the internet. A gigabyte (GB) is 1,073,741,824 bytes, 1,048,576 kilobytes (KB), or 1,024 megabytes (MB).
Fifty thousand emails with no file attached is about 1GB. The same goes for watching an 80-minute movie in standard definition (SD). Watching 20 minutes of a movie in high definition (HD) also equals about 1GB.
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Usage Comparisons for All Data Allowances or Internet Speed Plans |
Activity | 150GB | 250GB | 1TB |
Web browsing | 10,000+ pages | 10,000+ pages | 10,000+ pages |
Email | 10,000+ emails | 10,000+ emails | 10,000+ emails |
Social media | 10,000+ image downloads/uploads | 10,000+ image downloads/uploads | 10,000+ image downloads/uploads |
Music | 1,000+ MP3 song downloads | 1,000+ MP3 song downloads | 1,000+ MP3 song downloads |
YouTube | 1,000+ standard videos | 1,000+ standard videos | 1,000+ standard videos |
TV & movies | 75 hours SD TV and 90 SD or 25 HD movies | 75 hours SD TV and 100 SD or 35 HD movies | 400 hours SD TV and 720 SD or 200 HD movies |
FYI: The types of activities you do affect your usage more than the time you spend online. For example, data-rich activities like streaming video may use more data than sending emails.
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