Find your utility
It's on your electric bill, usually near your account number. Spaces and dashes are fine.
City results cover most addresses in each city. Some edges are served by a co-op, so the ESI ID check is the sure way.
ESI ID prefixes come from the Public Utility Commission of Texas critical care application, which lists the first 7 digits for each utility. Nothing you type is saved or sent anywhere.
Where do I find my ESI ID and utility on my bill?
Two places. Both are usually on the first page.
A long number for your meter. It's often near your account number or service address. The first 7 digits tell you the utility. Your electric company can also look it up from your address.
The charges your utility bills for the poles and wires. Many bills print the utility's name right next to them, along with its outage number.
What are the main electric utilities in Texas?
Five big utilities deliver power where Texans choose their electric company. City utilities, most co-ops and companies outside the main grid serve their areas alone.
The state's list also includes Nueces Electric Cooperative (1013830) and a former SESCO area now under Oncor (1017699). Delivery figures are current as of October 4, 2026. See every outage number in our power outage guide.
Why does it matter which utility I have?
Your utility decides three things: who fixes your outages, how much delivery costs, and whether you can shop for a better price.
You can't switch utilities. You can switch electric companies, if you live in an area with choice. Moving soon? See how to set up electricity when you move.
Utility questions, answered
How do I find out who my electric utility is in Texas?
Check the first 7 digits of the ESI ID on your bill. 1044372 is Oncor. 1008901 is CenterPoint. 1003278 is AEP Texas Central, 1020404 is AEP Texas North, and 1040051 is TNMP. Your bill's delivery charges line often names the utility too.
What is the difference between my utility and my electric company?
Your utility owns the poles, wires and meter, delivers the power and fixes outages. Your electric company sells you the power, sets your price and sends your bill. In Austin, San Antonio and most co-op areas, one company does both.
What is an ESI ID?
The Electric Service Identifier, the unique number for your meter. It's on your electric bill, and its first 7 digits identify your utility.
Can I choose my electric utility?
No. Your address decides your utility. In areas with choice, you can pick your electric company, but the same utility delivers your power either way.
Who is the electric utility for Dallas?
Oncor, for most of Dallas and the Dallas–Fort Worth area. Report outages to Oncor at 1-888-313-4747.
Who is the electric utility for Houston?
CenterPoint Energy, for most of the Houston area. Report outages to CenterPoint at 713-207-2222.
Can I shop for electricity in Austin or San Antonio?
No. Austin Energy and CPS Energy are city-owned and serve their cities alone, so you can't pick a different electric company there.
Sources and updates
Sources (9)
- Public Utility Commission of Texas, Critical care application (copy hosted by ERCOT): the first 7 ESI ID digits for each delivery utility.
- Oncor, Outage center: 1-888-313-4747.
- NBC DFW, 2.7 million without power as Beryl hits Texas: CenterPoint’s outage line, 713-207-2222.
- AEP Texas, Report a power outage: 866-223-8508.
- TNMP, Power outages and hazards: 888-866-7456.
- CPS Energy, Outage center: (210) 353-4357.
- Austin Energy, Outages: 512-322-9100.
- Public Utility Commission of Texas, Oncor temporary tariff, Docket 59249: Oncor delivery at 1,000 kWh.
- Gexa Energy, Electricity Facts Label, Gexa Eco Choice 12, TNMP (dated September 17, 2026): TNMP delivery charges.
Changelog · last updated October 4, 2026 · 1 update
- October 4, 2026: Tool published: ESI ID and city lookup, where to find your ESI ID, the main Texas utilities with outage lines and delivery charges, and why your utility matters.
How to cite this page: The Day Company, "Who's my electric utility in Texas? Find out in 10 seconds", updated October 4, 2026, https://theday.company/tx/utility-finder.
City results cover most addresses; edges of a city can be served by a co-op, so check your ESI ID to be sure. ESI ID prefixes come from the PUCT’s critical care application. The Day Company is not affiliated with any utility named here.