AT&T data plans just got bigger. The company is now offering larger mobile share plans, new mobile share – data only plans, and a new business data plan.

The new plans are ideal for businesses, as well as consumers who need more data; expanded options of 30 GB, 40 GB and 50 GB, include unlimited calls and texts. Existing mobile share plans offered from 1 GB to 20 GB of data per month.

Users can start by choosing the amount of data they want each month, and then select the devices to be included in their shared plan (at least one device must be a smartphone). Each plan includes unlimited domestic talk and texts for smartphones and quick messaging phones, and each plan includes tethering.

Costs start from $300 a month, plus $30 for each smartphone. Additional data comes at $15 per GB.