What is the usage minimum and how is it calculated?
The monthly usage minimum is $9.99 for customers enrolled in the AT&T One Rate Plan. For example, if your monthly calling charges are $8.99, then $1.00 will be added to your bill. The monthly usage minimum is $9.99 for customers enrolled in the following plans: AT&T Cash Back Offer, AT&T Simple Minutes, AT&T True Reach Savings, AT&T One Rate, AT&T One Rate Off-Peak, AT&T One Rate Off-Peak III, AT&T 5¢ Evenings (Online offer), AT&T 5¢ Nights (Online offer), AT&T One Rate 9¢ or AT&T One Rate 10¢, AT&T Simplified Calling, AT&T eWeekends (Online offer), AT&T One Rate Basic, AT&T One Rate Online, AT&T One Rate 12¢, AT&T One Rate Off-Peak California, AT&T One Rate Simple or AT&T Corporate Appreciation. For example, if your monthly calling charges are $8.99, then $1.00 will be added to your bill. Customers on these calling plans enjoy great rates usually with a small or no monthly plan fee. In order to keep these rates low and still recover our costs of providing service, it is necessary to c
