Tatango allows users to create segments to send messages to specific subscribers. However, if you want to see the number of subscribers in each of your segments, you will need to download your subscriber list.
Click Reports in the upper right.
Under List, select Subscriber Report.
Choose the List you want the report for, select the desired Subscriber Statuses and the Date Range needed. Click "Run Report".
The file will contain the following information:
Mobile phone
Carrier
Status
Subscribed date
Unsubscribed date (if applicable)
Keyword
Messages Received
Consecutive Bounced Messages
First Name
Email address
Zip Code
Birthdate
Gender
Tags
Birthday
Last Name
Any defined custom fields