Yes! You can order DIRECTV NOW whether or not you're an AT&T or DIRECTV customer. DIRECTV NOW is a separate service that is billed separately from any other account.
For pricing options, plan comparisons and to sign up, please visit DIRECTV NOW. Once your account is created, you can begin streaming right away.
Note: Existing DIRECTV satellite customers that are under contract term agreement must fulfill that agreement to avoid penalty or early termination fees. Promotional pricing and/or bundle discounts may become invalid with the removal of DIRECTV from the bundle.