Disclosed are various embodiments for processing orders for wireless service. An order for a wireless device and a wireless service plan is obtained in at least one computing device from a client. The wireless service plan is provided by one of a plurality of wireless carriers. A unique identifier of the wireless device is obtained from a fulfillment system after the wireless device has been pulled from an inventory for fulfillment. A request for activation of the wireless device and the wireless service plan is sent to a system of the one of the wireless carriers. The unique identifier is provided in the request to the system of the one of the wireless carriers.