AT&T on Friday confirmed that it has activated a record number of iPhones. “As of 4:30 pm ET today, AT&T had already activated a record number of iPhones on our network – and is on-track to double our previous record for activations on a single day,” the company said in a statement delivered to BGR via email. “These record volumes may produce slower activations for some customers, though our systems continue to run at record levels.” Customers have been complaining of difficulties with activations on various forums around the Web. Considering the carrier has already doubled its single-day activation record, it’s pretty impressive that the system is up at all. It should be noted that some customers are reporting better luck with activating their new iPhones on the device rather than through iTunes.