"The dormitory she shared with the others lay on the very edge of a large village, if a very strange one. A village of Asha’man. Elsewhere, so she had been told, ground was marked off for structures they claimed would dwarf the White Tower, but this was where most of them lived now. Five large, blocky stone barracks,
spaced along streets as wide as anything in Tar Valon, could each hold a hundred Asha’man Soldiers. They were not full yet, the Light be thanked, but snow-covered scaffolding awaited the arrival of workmen around the thick walls of two more than were almost ready for roofing in thatch. Nearly a dozen smaller stone structures were made to hold ten Dedicated each, and another of those was under construction, too. Scattered around them stood nearly two hundred houses that might have been seen in any village, where some of the married men lived, and the families of others not far enough along in training. Men who could channel did not frighten her. Once she had given in to panic for a moment, true, but that was beside the point. Five hundred men who could channel, however, were a scrap of bone wedged between two of her teeth where she could not free it. Five hundred!"

There is no reason to disbelieve the number. Toveine lives at the BT and certainly got further information from Logain or other AM.