Did you know your AT&T DSL is limited to 150GB/mo?

This is the email I got.  I can't find where the maximum is defined. Never heard.  Hmmm. Please report.  

Dear AT&T High Speed Internet Service Customer,

We want to remind you that your AT&T High Speed Internet service includes 150 gigabytes (GB) of data for each billing period.

       You have exceeded 150 GB this billing period.

We'll waive the charges for additional data this month and notify you as your usage approaches 150 GB in future months.

The next time you exceed 150 GB you'll be notified, but not billed. However if you go over your data plan in any subsequent billing period, we'll provide you with an additional 50 GB of data for $10. You'll be charged $10 for every incremental 50 GB of usage beyond your plan.

Here are some tips to help you manage your usage:

• Track your usage* by visiting att.com/internet-usage
  . Just log in using your primary AT&T email ID and password.
• Secure your wireless gateway/router. If you use Wi-Fi at home and you have not secured it with a password, someone nearby with a computer or Wi-Fi enabled device could access your home network and use your high-speed Internet service, which could increase your monthly usage.
• Manage household usage. If you have family members, children or friends who share your Internet connection, remember that their online activity will count toward your 150 GB data plan. AT&T Parental Controls is a free tool included with your service that enables you to customize access to websites, e-mail, instant messaging, chat, message boards, and more for each family member. You can even set time limits for access to the Internet.

For questions or additional tips on managing your Internet usage, please feel free to review our helpful FAQs and take advantage of our data calculator at att.com/internet-usage

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Thank you for choosing AT&T.

Sincerely,