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Meter reference numbers explained

Your meter and your property have reference numbers which help us to make sure we’re supplying energy to the right place. You have two types of references which help us to do this.

MPANs and MPRNs

We will sometimes refer to your property as a meter point, and your MPAN (Meter Point Administration Number) and MPRN (Meter Point Reference Number) are the references we use to identify one meter point from another. Your MPAN refers to your electricity supply and your MPRN as your gas supply.

The setup of some people’s energy supply means you may find you have more than one MPAN or MPRN. This should be clearly detailed on your energy bills.

Your MPAN

Your MPAN is a 21 digit number and can usually be found on your energy bill. Often, you’ll see it displayed like this:

Your MPAN tells us a number of things about your meter and the energy we’re supplying to your property:

  1. Your meter’s Profile Class which tells us the type of meter in your property. For domestic meters, this will usually be 01 or 02, and commercial properties 03 to 08. Further information on profile classes can be found here.
  2. This is your Meter Time Switch Code, which indicates how many ‘registers’ (set of meter reads or dials) your meter has and what times they operate during the day.
  3. Your Line Loss Factor or LLC, which is used as a multiplier to allow the amount of energy lost when electricity is distributed through the UK energy networks.
  4. This is your Distributor ID, which identifies which District Network Operator (or DNO) supplies energy to your property.
  5. Your Meter Point ID; a unique number which identifies your meter point.

Your MPRN

Your MPRN will be between 6 and 10 numbers long and is a unique number which identifies your gas meter point. Your MPRN can be found on your energy bill.

Meter Serial Numbers

Most electrical devices in your home will have a serial number and the same applies to your meters. Your meter’s serial number is unique and will usually be found clearly displayed on the front of your gas or electricity meters. When you join us as a customer, we’re sent your meter serial numbers to help us to make sure we’re supplying the right meters.

Help and advice

If you have any questions about your meter or your reference numbers, please don’t hesitate to get in touch. Details of how you can contact us can be found here.

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