One year later, AT&T acquired Bellsouth for US $67 Billion. At this point, the YELLOWPAGES.com business was no longer a joint venture, instead, it became a wholly owned subsidiary of AT&T, also doing business as AT&T Interactive. In 2009, the YELLOWPAGES.com site was rebranded as YP.com.

The main difference between the white pages and yellow pages is that the yellow pages contain business phone numbers only. The white pages only have residential phone number listings. The yellow pages were organized by type of service in a geographical area and then alphabetically.

The name and concept of "yellow pages" came about in 1883, when a printer in Cheyenne, Wyoming, working on a regular telephone directory ran out of white paper and used yellow paper instead. In 1886, Reuben H. Donnelley created the first official Yellow Pages directory.