What is a meter serial number?

A meter serial number is a long string of numbers on a gas or electric meter. It is unique to the meter and often referred to as an ‘MSN’. It is different to a supply number.

Where can I find my meter serial number?

Your meter serial number is usually on the front of the meter and is often a mix of both letter and numbers. We also put it on your energy statement. Here's an example of where you would see gas and electricity meter serial numbers.

Electricity meter

Gas meter 


How is this different to a supply number?

The supply number (your MPRN or MPAN) is a reference point for the property where the meter is located. It's the point where we put the meter, not the meter itself. When a meter is replaced, the serial number will be different. The supply number always stays the same.

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