What is my Mpan Number?

An MPAN is short for Meter Point Administration Number which is a unique number assigned to a property with an electric supply within the UK. It is usually found on the electricity bill issued by your supplier. This is sometimes called a Supply Number but it should not be confused by the meter serial number or the customer reference number.

The full MPAN is made up of a 21 long numeric number and can usually be found on a recent electricity bill as seen below.

Whats is a Mpan Number

Profile Class (PC) The first two digits of a full MPAN reflect its profile class

The profile class simply is the type of supply for the meter and reflects the price and how the bill is calculated.

00 Half-hourly supply (import and export)
01 Domestic Unrestricted
02 Domestic Economy Meter of 2 or more rates
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 Class (MTC)

The MTC is a 3 digit code that reflects the various registers a meter may have, whether it be a Single Rate, Day Night split, or even a Seasonal Time of Day

MTC Ranges
001 - 399 Distribution network operator
400 - 499 Reserved
500 - 509 Codes for related Metering Systems - common across the Industry
510 - 799 Codes for related Metering Systems - DNO specific
800 - 999 Codes common across the Industry

Line Loss Factor Class (LLFC)

The Line Loss Factor Class or LLFC[7] is used to identify the related Distribution Use of System (DUoS) charges for the MPAN. The figure reflects both the amount of distribution infrastructure used to supply the exit point and the amount of energy lost through heating of cables, transformers, etc.

Core

The MPAN core is the final 13 digits of the MPAN, and uniquely identifies an exit point. It consists of the two-digit Distributor ID, followed by an eight-digit unique identifier, then by two digits and a single check digit.

Distributor ID

Mainland UK is divided into fourteen distribution areas as shown in the image below. For each area a single company, the distribution network operator, has a licence to distribute electricity. They effectively carry electricity from the National Grid to the exit point (each has a unique MPAN and a possibility of several meters) where the customers are. The owner of the distribution network charges electricity suppliers for carrying the electricity in their network. Their DNO licensed regions are the same geographic areas as the old nationalised electricity boards

UK Electricity Network Operators
DNOs
ID Name Operator Phone Number
10 Eastern England UK Power Networks 0845 601 5467
11 East Midlands Western Power Distribution 0845 601 5972
12 London UK Power Networks 0800 028 0247
13 Merseyside and Northern Wales ScottishPower 0845 270 9107
14 West Midlands Western Power Distribution 0845 601 5972
15 North Eastern England Northern Powergrid 0845 330 0889
16 North Western England Electricity North West 0870 751 0093
17 Northern Scotland SSE Power Distribution 0845 744 4555
18 Southern Scotland ScottishPower 0845 270 9107
19 South Eastern England UK Power Networks 0800 072 7282
20 Southern England SSE Power Distribution 0845 744 4555
21 Southern Wales Western Power Distribution 0845 601 5972
22 South Western England Western Power Distribution 0845 601 5972
23 Yorkshire Northern Powergrid 0845 330 0889

Check Digit

The final digit in the Meter Point Administration Number is the check digit, and validates the previous 12 (the core) using a modulus 11 test. The check digit is calculated thus:

  • Multiply the first digit by 3
  • Multiply the second digit by the next prime number (5)
  • Repeat this for each digit (missing 11 out on the list of prime numbers for the purposes of this algorithm.)
  • Add up all these products.
  • The check digit is the sum modulo 11 modulo 10.
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