T. T-Mobile (Merged w/AT&T) Centennial Wireless (Merged w/ AT&T) About the Centennial Wireless Merger with AT&T Centennial Wireless is now part of the AT&T family.
Learn more about the merger Careers Redefine yourself and the world with the new AT&T. Welcome to Cellular One. The Only One for Louisiana. Centennial Wireless is Now CellularOne. Broadpoint LLC (Wholly-owned subsidiary of CellOne)