Apart from historical documents, AT&T does not presently make active use of the Bell marks. Its local exchange companies have retained the "Bell" names; however, they have been doing business under other names since 2002. They do maintain web domain names with most of the older Bell names (such as OhioBell.com) which all rollover to the AT&T website. Many of these names are still listed with the US Patent and Trademark Office as current trademarks, since these names are still considered in use.