What's my supplier number?
There are two types of supply number, one for gas and one for electricity. These numbers are unique for each supply point and can be found on your energy bill and, on more recent installations, the meter itself. This number does not change if you switch supplier.
The gas supply number is known as the Meter Point Reference Number (MPRN), you will find this number on your gas bill – it will be 6 to 10 numerical digits long.
Electricity supply number is called Meter Point Administration Numbers (MPAN), the full MPAN is 21 digits long and can be found on your electricity bill.