T-Mobile USA on Friday started accepting online pre-orders for the iPhone 5.

The popular Apple smartphone won’t be available in T-Mobile stores until April 12, but customers can pre-order it on the carrier’s website(Opens in a new window) now. The base 16GB variant in either black or white will set you back $99.99 down, plus $20 per month for 24 months. You can avoid the monthly fee by paying the full price of the phone, $579.99, at checkout.

The carrier is also offering the 32GB and 64GB variants in black and white. The 32GB model is priced at $199.99 down, plus monthly payments of $20 for 24 months, or $679.99 upfront. The 64GB variant costs $299.99 down, plus monthly payments of $20 for 24 months, or $779.99 upfront.

After much speculation, T-Mobile late last month officially announced plans for the iPhone. The carrier also recently ditched wireless contracts and phone subsidies, referring to itself as the “un-carrier.” Plans start at $50 per month for unlimited talk and text and 500MB of 4G data. Customers can add 2GB of 4G data for $10 per month per line or get unlimited 4G data for an additional $20 per month per line.

“This is an important day for people who love their iPhone but can’t stand the pain other carriers put them through to own one,” John Legere, president and CEO of T-Mobile USA, said in a statement last week. “We feel their pain. I’ve felt the pain. So we’re rewriting the rules of wireless to provide a radically simple, affordable iPhone 5 experience — on an extremely powerful network.”

T-Mobile also just started its 4G LTE rollout in seven major cities, including Baltimore; Houston; Kansas City; Las Vegas; Phoenix; San Jose, Calif.; and Washington, D.C.

For more, see PCMag’s Hands On With the iPhone 5 for T-Mobile.