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What are MPAN and MPRN numbers?

If you’re switching energy supplier, you might be required to provide your meter supply numbers. Known as a Meter Point Administration Number (MPAN) and Meter Point Reference Number (MPRN), these figures mark out your gas and electricity meter as unique to your property.

Here’s how you can find your MPAN and MPRN numbers and how they affect the price of your energy contract.

How to find your MPAN and MPRN numbers

You can find your MPAN number in the top left or bottom right corner of your last electricity bill. It’s easy to spot as the number is displayed in seven small boxes with a capital ‘S’ at the front.

Your MPRN number is a 6-10 digit number which you can usually find at the top or bottom of your gas or dual fuel bill.

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What is an MPAN Number?

MPAN stands for Meter Point Administration Number and is sometimes known as a Supply Number of S Number. It is an electricity supply number which is unique to a property and is used by energy companies to decide on your electricity rates.

Your MPAN number is 21 digits long and should be presented in a format similar to the example image shown below.

MPAN Example

What is an MPRN Number?

MPRN stands for Meter Point Reference Number and is sometimes referred to as an ‘M’ number. This is your gas supply number and is a unique 6-10 digit number belonging to a residential property so it can be identified by energy suppliers.

It is vital that you understand your MPRN number, and what it entails. If it starts with 74 or 75 then your home is supplied by an Independent Gas Transporter, which may mean your gas price is more expensive, as some suppliers charge a higher rate to customers served by independent gas transporters.

If this is the case and you want better deals on your gas contract, Love Energy Savings can help you compare the best energy suppliers.

How to find your MPAN number without an electricity bill?

If you don’t have your electricity bill to hand, you can find your MPAN number by calling your electricity supplier and asking for your MPAN number or S number.

If you’re unsure who your supplier is, take a look at our article on how to find out who supplies your gas and electricity.

How to find your MPRN number without a bill?

If you can’t find your MPRN number, you can access this by entering your postcode at Find My Supplier or by contacting the Meter Number Helpline on 0870 608 1524.

Why do I need an energy meter number?

You will need your Meter Point Administration Number and Meter Point Reference Number if you’re moving into a new home or switching energy suppliers so your new supplier knows that they are taking over the correct energy supply.

As both numbers unique to your property, it’s the most accurate way to identify your energy supply.

If you have moved to a new house, you may be required to give your supplier the MPAN and MPRN of both your new and old property.

What is the difference between MPAN or MPRN and a meter serial number?

For many people, their meter serial number (MSN) can be confused with their MPAN and MPRN. Your meter serial number is the number which defines your actual meter rather than your property.

If you have a standard meter, your MSN will usually be between 9 and 12 digits long printed above or below the barcode. Your MSN will likely begin with the letter ‘F’ on electricity and ‘L’ on your gas meter.

For smart meters, your MSN will be located on the front of the meter box. It will likely begin with either 14P or 15P on an electricity smart meter. For a gas smart meter, it will begin with G4P.

Understanding your energy meter numbers

Depending on whether you are a household or a commercial property you will have a different meter. Home businesses will run on a domestic meter.

There are two profile classes available to domestic properties:

  • 01 ‘Domestic Unrestricted’, where you are charged a standard rate based on your consumption.
  • 02 ‘Domestic Economy 7’ which includes off-peak pricing during certain hours of the night.

A table of all profile classes (including the classes Commercial properties) is shown below:

00 Half-hourly supply
01 Domestic Unrestricted
02 Domestic Economy 7
03 Non-Domestic Unrestricted
04 Non-Domestic Economy 7
05-08 Non-Domestic Maximum Demand


Customers in Profile Classes 05 to 08 are known as Maximum Demand (MD) customers, meaning that they require the highest amount for a certain period of time.

MD customers have registers attached to their Meter Systems in order to supply the maximum demand of energy for a given period.

A Peak Load Factor (LF) is the ratio of consumption during a given period compared to the number of kWh that would have been supplied if the maximum demand had been maintained throughout that period.

Put simply, the Peak Load Factor informs the customer on how much energy they could have used at maximum capacity.

Meter Timeswitch Code

The Meter Timeswitch Code determines how many meter reads and dials your electricity meter has. It also indicates at what times of the day they will operate.

It will also show if your meter has two registers, one which records day consumption, the other night.

The Line Loss Factor relates to the expected cost the distribution company will charge your supplier for using the network and cables in your area.  It also includes information regarding the charges incurred due to the loss of energy in getting the electricity supplier to your meter.

What Causes Line Loss?

Line Loss is energy lost in the system as it is supplied to your meter. It is estimated 7% of all electricity generated is lost through transmission.

It can occur for reasons such as inaccuracy of revenue meters, energy thefts, or un-metered errors (such as street lights).

Line loss is also due to resistance in the wires transferring the electricity, which is why the further your property is from a distribution centre, the more expensive your electricity is likely to be. Longer distance means longer wires, which means more resistance.

Distributor Identifier Code

The Distributor Identifier Code (or Distributor ID) is a unique number assigned to a local distribution company. The distribution company is responsible for the distribution system, wiring and infrastructure which supplies the electricity to your meter. Below is a list of Distributor ID’s and the companies they represent.

ID Name Operator
10 Eastern England UK Power Networks
11 East Midlands Western Power Distribution
12 London UK Power Networks
13 Merseyside and Northern Wales ScottishPower
14 West Midlands Western Power Distribution
15 North Eastern England Northern Power Grid
16 North Western England Electricity North West
17 Northern Scotland SSE Power Distribution
18 Southern Scotland ScottishPower
19 South Eastern England UK Power Networks
20 Southern England SSE Power Distribution
21 Southern Wales Western Power Distribution
22 South Western England Western Power Distribution
23 Yorkshire Northern Power Grid
27 Unmetered Supply Unmetered Supply


MPAN Core (Meter Point ID Number)

The core MPAN (Meter Point ID number) is the unique code assigned to your meter. It is the final 13 digits of your MPAN number and identifies an exit point. The MPAN core is made up of the 2 digit Distributor ID, 8 digit unique identifier number, 2 more digits and finally the check digit.

Check Digit

The Check Digit is the final number in the MPAN and is provided so other systems can validate your MPAN.

Switch & Save with Love Energy Savings

If you’re looking for a cheaper energy deal, Love Energy Savings can help you compare electricity and gas from a huge range of energy suppliers and tariffs without the hassle.

Whether your searching for home energy deals, a high energy usage business, or comparing small business electricity prices, we can help you.

Having your MPAN and MPRN number to hand will make sure the process of switching your supplier runs even more smoothly.

To find out how much you could save on your energy bills with Love Energy Savings, simply complete our energy comparison tool.

Or, you can find more tips on switching energy suppliers by taking a look at the rest of our energy guides and advice.

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