Committed to protecting billions of dollars of underground utilities & the people around them by notifying utility members of someone's intent to dig.

When you need to know where underground utilities are located before you dig, contact Texas811.

It's a FREE service!

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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

  • Founded in 1984

  • Used to be known as Dig TESS

  • Around-the-clock availability via the Internet or phone 811

  • More than 40 bilingual agents on staff to process locate requests in Spanish

  • Non-profit, member driven

  • 2000+ Utility and Municipal Members

  • More than 3,700,000 inbound tickets processed in 2020

  • More than 21,000,000 outbound tickets in 2020

  • 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


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

  • We Over Me

  • Embrace Collective Thinking

  • Challenge with Curiosity

Invest in Yourself

  • Find your Passion

  • Influence through Demonstration

  • Seek Learning Opportunities

Go for WOW

  • Exceed Expectations

  • Challenge the Status Quo

  • Create Memorable Experiences


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.