Who Supplies My Gas and Electricity? How to Find Out

Gas and electricity are supplied under separate contracts and held on separate national databases, so finding out who supplies your home often means doing the lookup twice. There are two routes: the postcode lookup below, or the official Find My Supplier service for gas and your regional electricity network operator for electricity. Both take under five minutes and need nothing more than your address.

Find Your Energy Supplier by Postcode

Enter your postcode and select your address. The lookup returns the energy supplier registered to the meter at that property.

What the lookup tells you

• The name of the supplier currently registered to your address
• Whether gas and electricity are supplied by the same company or two different ones
• Your meter numbers, where these are available

What it does not tell you

• The tariff you are on, or the rates you are paying. Only your supplier can confirm that once you contact them.
• Anything about a previous occupant’s account, balance or debt
• Details for properties with no gas supply. Around one in six UK homes is not connected to the gas network, and those addresses will return an electricity result only.

If the tool does not return a result, or you would rather go direct, both official routes are set out below: the Find My Supplier service for gas, and your regional Distribution Network Operator for electricity. Both are free to use.

How to Find Out Who Supplies Your Gas

Here are the three methods in the order most people find easiest.

1. Check a recent bill or bank statement

The quickest route if you have any paperwork to hand. Your supplier’s name appears at the top of any gas bill, and in your online account if you have one.

If you have gone paperless, search your email inbox for “gas” or “energy” — most people have a welcome email or a statement notification sitting there. Your bank statement or direct debit list is often faster still, because the payee name is the supplier name.

2. Use the Find My Supplier service

Find My Supplier is the official national gas lookup, run by Xoserve, the company that maintains the central gas registration database on behalf of the industry. It is free, it takes about a minute, and it does not ask for personal details beyond your address.

Enter your postcode, select your address from the list, and the service returns three things:

• Your gas supplier — the company that bills you for the gas you use
• Your MPRN — the Meter Point Reference Number, which uniquely identifies the gas supply point at the property
• Your gas transporter — the network company that owns the pipes serving your area

Because the service reads from the central industry database rather than from any one supplier’s records, it works regardless of who lived at the property before you.

3. Call the Meter Number Helpline

If you would rather speak to someone, or the online service cannot find your address, call the Meter Number Helpline on 0870 608 1524. It is an automated service with the option to be put through to an operator.

Have your full address and postcode ready before you call. Calls to 0870 numbers are charged at a service charge set by the operator plus your phone provider’s access charge, so check with your provider if you are unsure of the cost.

If the lookup returns nothing

A property with no gas connection will not appear on the database at all. This is the single most common reason a gas lookup fails, and it is not an error — it simply means the property is not connected to the gas network. Homes heated by electricity, oil, LPG or a heat pump often fall into this category, as do many flats and rural properties.

If you are confident the property does have a working gas meter but the lookup still returns nothing, contact the supplier you want to switch to. They can start the process of identifying the current supplier on your behalf.

Your gas supplier is not the same as your gas transporter

This trips a lot of people up. Two different companies are involved in getting gas to your home:

• Your gas supplier is the company you have a contract with. They buy the gas, send your bills, and take your payments. You can change them whenever you like.
• Your gas transporter owns and maintains the pipes in your region. You cannot choose them — they are fixed by your address. You contact them about gas leaks, meter safety, or a new connection, never about billing.

There are four gas transporters covering Great Britain.

How to Find Out Who Supplies Your Electricity

1. Check a bill, bank statement or smart meter display

As with gas, the fastest route is existing paperwork, an online account or the supplier’s app. A bank statement may also identify the company collecting your Direct Debit.

2. Use the postcode lookup

The tool at the top of this page will return the electricity supplier registered to your address.

3. Contact your Distribution Network Operator

Your Distribution Network Operator, or DNO, owns the cables, poles and substations that physically bring electricity to your street. They hold the record of which supplier is registered against your meter, and they can tell you who that is.

There are two ways to find yours:

• Use the Energy Networks Association postcode lookup at energynetworks.org
• Call 105 free from any landline or mobile in England, Scotland and Wales. It routes you automatically to the network operator covering your postcode. In Northern Ireland, call NIE Networks on 03457 643 643.

Your network operator is not your supplier

This is the most common misunderstanding on the whole topic, so it is worth being clear about.

Your network operator owns the wires. They are fixed by where you live, and you cannot switch them. They deal with power cuts, new connections, meter moves and anything involving the physical network. They never send you a bill.

Your supplier sells you the electricity. They set your tariff, send your bills and take your payments. You can switch them whenever you want, and doing so changes nothing about the wires or the meter.

Distribution Network Operators by region

Find your region below to identify your network operator. The MPAN distributor ID column lets you cross-check against your electricity bill.

You can also identify your operator from your electricity bill. The first two digits of the bottom line of your MPAN are the distributor ID, and they match the numbers in the table above.

Your gas and electricity supplier may well be different companies

No rule says one company must supply both fuels to a property. Plenty of homes are billed for gas by one company and electricity by another, particularly where a previous occupant switched one fuel and not the other.

This is why two separate lookups are needed. If both come back with the same name, you are on what the industry calls a dual fuel arrangement, and you will usually have a single account covering both.

I Have Just Moved In — How Do I Find Out Who Supplies the Property?

You do not need anything from the previous occupant. Both the postcode lookup and the Find My Supplier service return whoever is registered to the meter at that address, regardless of who was living there. You do not need their name, their account number, their forwarding address, or their permission.

Here is what to do, in order, on the day you move in.

1. Take a meter reading before you do anything else

Find the gas and electricity meters, write the readings down, and photograph them with the date visible if you can. This takes two minutes, and it is the single most useful thing you can do.

That reading is the line between the previous occupant’s usage and yours. Without it, you are relying on someone else’s estimate of where their consumption ended, and estimates are frequently wrong in the supplier’s favour.

2. Find out who the supplier is

Use the postcode lookup at the top of this page, or the official routes described above — Find My Supplier for gas, your network operator for electricity.

3. Contact the supplier and give them your move-in date and readings

Tell them you are the new occupant, when you moved in, and what the meters read on that date. They will open an account in your name and close the previous one.

Do this promptly. If you let it drift, you may find yourself receiving estimated bills covering a period before you lived there, and unpicking that afterwards is far more work than getting it right at the start.

You will initially be on a deemed contract

Deemed rates are normally based on the supplier’s default tariff. They may not be the cheapest rates available, so it is worth checking the supplier’s other tariffs and comparing the wider market.

Three things are worth knowing about deemed contracts:

• The rates are usually among the most expensive a supplier offers. Deemed rates are typically at or close to the supplier’s standard variable tariff, which is the default, unnegotiated rate.
• There is no fixed term and no exit fee. You are free to switch to a different supplier or a cheaper tariff from day one.
• Nothing happens automatically. If you do nothing, you stay on deemed rates indefinitely.

Because there is no exit fee and no notice period, switching after a move is one of the few genuinely straightforward wins in energy. Running a comparison takes a few minutes and needs nothing more than your postcode and a rough idea of your usage.

What about debt left on the meter by a previous occupant?

If you have a prepayment meter with a debt balance on it, or you receive a bill covering a period before your move-in date, contact the supplier, give them your move-in date and your opening meter readings, and ask them to reassign the balance to the previous occupant’s account. Keep your tenancy agreement or completion statement to hand as evidence of when you took over.

If the supplier will not resolve it, you can escalate to the Energy Ombudsman free of charge once you have had a final response, or after eight weeks.

Our moving home energy guide covers the full checklist.

How to Find Out What Tariff You Are On

Once you know who supplies you, the next question is usually what you are paying. Knowing the supplier is only half the picture — the tariff determines the actual cost.

Where to find your tariff name

• On a bill. The tariff name is normally printed near the top of the first page, or in a summary box alongside your unit rate and standing charge. Look for a line labelled “your tariff” or “tariff name”.
• In your online account or app. Most suppliers show the tariff name, the end date and the exit fee on the account overview page.
• On your annual statement. Suppliers are required to send one each year, and it sets out your current tariff and what you have spent.

How to tell a fixed tariff from a standard variable tariff

If you have never actively chosen a tariff, you are almost certainly on the standard variable one.

Check your exit fee position before switching

If you are on a fixed tariff, check the end date and the exit fee before you switch. Two things work in your favour:

• Exit fees are per fuel, per meter, and are typically modest — often around £25 to £75 per fuel, though this varies by supplier and tariff.
• You can switch penalty-free in the final 49 days of a fixed contract. Suppliers are not allowed to charge an exit fee during that window.

A saving that comfortably exceeds the exit fee still makes switching worthwhile. Our guides to fixed price energy and standing charges explain how the numbers work.

What If My Supplier Has Gone Bust?

Here is what happens in practice:

• Your supply is never cut off. The transfer happens in the background.
• Any credit balance is protected, including balances built up over the summer, and it carries across to the new supplier.
• You are moved onto a deemed contract with the new supplier. As with moving house, these rates are typically not competitive.
• Once the transfer has completed and the new supplier has contacted you, you can switch away without paying an exit fee. Do not begin a new switch while Ofgem is arranging the transfer.

Take a meter reading as soon as you hear the news, and hold on to your final bill or statement from the old supplier. It makes reconciling the balance far simpler.

If you are trying to work out who took over an account after a supplier failed, the lookups on this page will return the new supplier, because the industry databases are updated as part of the transfer. Our guide to energy suppliers that have gone bust has more detail.

FAQs

How do I find my previous tenant’s energy supplier?

You do not need anything from the previous tenant. Both the postcode lookup and the Find My Supplier service return whoever is registered to the meter at that address, regardless of who lived there. You do not need their name, their paperwork or their permission — just your postcode and house number.

How do I find who my gas is with?

Use the free Find My Supplier service at findmysupplier.energy, or call the Meter Number Helpline on 0870 608 1524. Both identify the gas supplier registered to your address using your postcode and house number. Find My Supplier also returns your MPRN and the name of your gas transporter.

Who do I contact to get a gas supply to my house?

That is a different question from finding your supplier. A new physical gas connection is arranged through your regional gas transporter — Cadent, SGN, Northern Gas Networks or Wales & West Utilities. Once the pipe and meter are installed, you then choose an energy supplier to bill you for the gas you use.

How do I find out who my supplier of electricity is?

Start with your regional Distribution Network Operator, which holds the record of which supplier is registered to your meter. Find yours using the Energy Networks Association postcode lookup, or call 105 free from any phone in England, Scotland and Wales. The lookup on this page does the same job.

How do I find out what electricity provider I have in my area?

Electricity is not allocated by area — you can choose any supplier, wherever you live. What is fixed by your address is your network operator, which owns the wires. To find out which supplier is currently billing your property, use the postcode lookup above or contact your network operator.

How do I find my electricity supply number without a bill?

Your regional Distribution Network Operator holds your MPAN, so contact them with your address, and they can provide it. Your gas MPRN is available free from the Find My Supplier service. Our guide to MPAN and MPRN numbers explains where each appears and what the digits mean.

Is my gas supplier the same as my electricity supplier?

Often not. Gas and electricity are supplied under separate contracts and recorded on separate national databases, so one company may bill you for gas and another for electricity. This is why two lookups are needed. If both return the same name, you are on a dual fuel arrangement.

Can I switch supplier straight after moving house?

Yes, immediately. Moving in puts you on a deemed contract, which has no fixed term and no exit fee, so you can switch from day one. Deemed rates are usually among the most expensive a supplier offers, which is why switching quickly is almost always worth doing.

Conclusion

For gas, use the Find My Supplier service at findmysupplier.energy or call the Meter Number Helpline on 0870 608 1524. For electricity, use the postcode lookup on this page or contact your regional Distribution Network Operator through the Energy Networks Association lookup or by calling 105. Both routes are free and need nothing more than your address.

Most people asking this question have just moved in. If that is you, it is worth knowing that you are on a deemed contract, that deemed rates sit among the most expensive on the market, and that you can leave whenever you like without paying a penny in exit fees. Once you know who supplies you, the useful next step is finding out whether you should stay with them.

Last updated: August 2026. Next review: February 2027.