What is an MPAN?

Meter Point Administration Number (MPAN)

A Meter Point Administration Number or MPAN for short is a unique reference number used by the energy companies to identify your connection to the national grid. It is sometimes called a supply number and can be found on your electricity bill and will appear in the format shown below:


The MPAN consists of two parts, the core and the supplementary data. The supplementary data is the numbers in the top row of boxes and provides information regarding the electricity supply. The core data is the 13 digits on the second row of boxes and is the unique identifier. The full MPAN consists of 21 digits, the following sections explain what each set of numbers mean.

Profile Class

The first two digits of the full MPAN are the profile class. This is used to identify the likely electricity consumption pattern throughout the day. Most domestic properties will be either class 01 or 02.

  • 00 - Half-hourly supply
  • 01 - Domestic Unrestricted
  • 02 - Domestic Economy 7
  • 03 - Non-Domestic Unrestricted
  • 04 - Non-Domestic Economy 7
  • 05 - Non-domestic, with MD recording capability and with LF less than or equal to 20%
  • 06 - Non-domestic, with MD recording capability and with LF less than or equal to 30% and greater than 20%
  • 07 - Non-domestic, with MD recording capability and with LF less than or equal to 40% and greater than 30%
  • 08 - Non-domestic, with MD recording capability and with LF greater than 40% (also all NHH export MSIDs)

Meter Time Switch (MTC)

The MTC is a 3 digit code that indicates how many registers (set of meter readings or dials) your electricity meter has and at what times they will operate. You may have a single rate, day & night split or seasonal time of day. This is commonly seen where Economy 7 is in place and there are separate readings for day and night units.

Line Loss Factor

The Line Loss Factor is used to calculate the costs the distribution company will charge the electricity supplier for using the distribution network, these are called the Distribution Use of System (DUoS) charges. This charge covers the cost of maintaining the network and for the electricity lost as heat in the cables and transformers.

Distributor ID

There are 14 distribution areas in Great Britain. Each area is maintained by a Distribution Network Operator (DNO) who are responsible for the local networks that transfer electricity from the National Grid to your electricity meter. To find out more visit our Distribution Network Operators page.

Unique Identifier

This is a unique 8 digit number used to identify you metering point.

Check Digit

The check digit is used to validate the core MPAN and check for errors.