Founded in 1984, the non-profit Texas811 is the largest one-call notification center in the country. We protect billions of d ... ollars of underground utilities and the people who live and work around them. Texas811 is the link between those intending to dig and our member utility companies. We notify utility companies that are registered with Texas811 of the planned excavation and they send locators to mark their underground utility lines. These markings represent the approximate location of the underground utility lines. Our mission is to facilitate damage prevention, promote public safety and protect the environment through stakeholder education and communication. read more