The Meter Point Administration Number (MPAN) is used to identify your property’s electricity supply, it's also known as the ‘supply number’, ‘M number’ or 'endpoint'.

You can find this number in the electricity section of your energy bill.

The MPAN has a standard format: 

  • The S always appears (it won't ever be another letter).
  • The top row of numbers is always made up of eight digits, they tell us where the supply is in the country.
  • The bottom row is always made up of 13 digits, this is your MPAN.


If you’re asked to confirm this number, check that your MPAN matches your old and new supplier by looking at new and previous bills.