Texas811 creates a ticket that alerts the nearby registered utility companies to go to your worksite and mark where their underground utilities are located.
This helps prevent unintended consequences from digging into an underground utility such as injury, damage to property and service outages.
Texas811 is the link between your plans to dig and our member utility companies. Texas811 does not actually mark underground utilities. We notify our member utility companies of the planned excavation and they send locators to mark their lines.
Founded in 1984, the non-profit Texas811 is the largest one-call contact notification center in the country with more than 2,000 members.
Texas811 members are utility companies and municipalities who choose Texas811 to provide them notifications of planned excavations near their underground lines.
To educate excavators, emergency responders and the public, Texas811 hosts damage prevention educational events; an annual Summit and training sessions. Texas811 manages the largest Facebook page of any state one-call organization in the country, which helps educate the general public about underground safety.

Texas811 Quick Facts
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Founded in 1984
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Used to be known as Dig TESS
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Around-the-clock availability via the Internet or phone 811
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More than 40 bilingual agents on staff to process locate requests in Spanish
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Non-profit, member driven
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2000+ Utility and Municipal Members
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More than 3,700,000 inbound tickets processed in 2020
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More than 21,000,000 outbound tickets in 2020
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Serves all 254 counties in Texas
Hours and Holidays
Texas811 provides around-the-clock availability via the Internet or phone 811
Texas811 observes all Texas State Holidays (which are not included in the two business day waiting period prior to digging)
If a Federal holiday falls on the weekend, it will be observed on the observance day aligned with the law.
Texas State Holidays 2022
New Year's Day
Martin Luther King, Jr. Day
Confederate Memorial Day
Presidents’ Day
Texas Independence Day
San Jacinto Day
Memorial Day
Juneteenth
Independence Day
Lyndon Baines Johnson Day
Labor Day
Veterans Day
Thanksgiving Day
Day after Thanksgiving Day
Christmas Day
New Year's Day
Friday December 31, 2021
Monday January 17, 2022
Wednesday January 19, 2022
Monday February 21, 2022
Wednesday March 2, 2022
Thursday April 21, 2022
Monday May 30, 2022
Monday June 20, 2022
Monday July 4, 2022
Friday August 26, 2022
Monday September 5, 2022
Friday November 11, 2022
Thursday November 24, 2022
Friday November 25, 2022
Monday December 26, 2022
Monday January 2, 2023
Mission Statement
To facilitate damage prevention, promote public safety and protect the environment through stakeholder education and communication.
Core Values
Drive Collaboration
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We Over Me
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Embrace Collective Thinking
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Challenge with Curiosity
Invest in Yourself
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Find your Passion
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Influence through Demonstration
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Seek Learning Opportunities
Go for WOW
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Exceed Expectations
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Challenge the Status Quo
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Create Memorable Experiences
DIGTESS

DigTESS is the name we were known by from our inception in 1984 until 2009. The 811 number was created in 2007, and we changed our name to Texas811 in 2009. The Dig TESS name was so well known that to this day we receive calls requesting a Dig TESS.
Our DigTESS heritage still lives in our blood. It is in every ticket we process, in our damage prevention programs and in our customer service.
When you want DigTESS quality, you’ll find it at Texas811!
We used to be known as DigTESS.
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