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Endesa - Electricity, Gas, People

What is CUPS, where to find it and why it matters to you

Published on January 17, 2018

When managing your electricity or gas, they probably ask for your CUPS number. We’ll explain where to find it.

When managing your energy, such as, for example, getting registered when you reach a home in which there is no light or gas, they're going to ask for your CUPS number.

This code identifies the supply point, and so it could be said that for energy, it is the vehicle identification number for cars. In both cases, what is identified is not a person.

If you change homes, you’ll change your CUPS and the one you had will continue identifying your previous home.

What does CUPS mean?

The acronym CUPS are the initials of the Universal Supply Point Code (Código Universal de Punto de Suministro, in Spanish) , a key with 20 to 22 alphanumeric digits which is essential for confirming your energy supply. Your electricity supply has one CUPS number. Your gas supply has a different CUPS number.

CUPS was created in order to identify each home or business that receives electricity and/or natural gas. It is permanent and invariable: it does not change no matter how much the rate changes, from a seller and even the distributor company.

What does CUPS serve for?

In addition to identifying a point of energy supply, it is necessary to provide the CUPS number to carry out operations as common as:

Although it’s not essential for other operations, we recommend you to always take it into account, because it streamlines many processes.

Where do I find the CUPS number?

Finding out your CUPS number is easy, given that this code is on all of your electricity and gas bills. Therefore, you just need to pick up any bill and go to the Contract Information section. There, along with the contract holder, power contracted and other data, you’ll find the 20 or 22 characters of your CUPS number.

One piece of advice: with Endesa’s digital bill, you'll always have your bills handy and without occupying space with all of the data that you need for this type of operations. Register and activate the digital invoice if you haven’t done so yet.

If you do not have any invoice at hand, the contract holder can call the distributor of their area and ask about the CUPS code, giving their name, DNI and address of the property.

The distributor is responsible for connecting your home to the network. You can’t choose a distributor because they are assigned by area. You can, however, choose your supplier: the company you have a contract with and which sends you bills.

A map is provided below showing you who your electricity distributor is by area.

Deciphering the CUPS number:

So that you can discover it in depth, we are going to x-ray the numbers and letters that make up the CUPS number.


  • The two first signs are the letters that represent that of the country, in this case, Spain, under the abbreviation: ES.
  • The four following digits are numbers and identify the distributor company, given that each one is identified by the Ministry of Energy through a specific code.
  • Finally, the remaining numbers are assigned by the own distributor to recognise the final supply point. Which is also known as your home or business. To these figures, there are two or more letters that serve to control and detect possible errors in the supply of energy.

What if I don't have the CUPS number?

The case may arise where your home or location still does not have a CUPS number because you have not registered yet. Obviously, this is common for newly built buildings.

To obtain your CUPS, you’ll have to register the electricity or gas.

CUPS is different for electricity and gas, but always identifies the supply point and never a person.