What Are MPAN and MPRN Numbers?

If you've ever tried to switch an energy supplier, you've probably been asked for a string of numbers you didn't know you had. That's your MPAN, your MPRN, or both, and you'll find both in about thirty seconds once you know where to look.

Here's what they are, why they matter, and where to find them.

What Is an MPAN Number?

MPAN stands for Meter Point Administration Number. It's a 21-digit code that identifies your electricity supply point, and it's how your supplier makes sure the right bill lands with the right business. Most of the time, though, you'll only need the last 13 digits, known as your core MPAN, since suppliers usually ask for that when switching.

You'll usually find it on your electricity bill. Sometimes it's on the meter itself.

You don't need to know your MPAN to compare deals with us. We can find your meter using your postcode.

What Is an MPRN Number?

MPRN stands for Meter Point Reference Number, and it does the same job for gas. It identifies your gas supply point so your supplier knows exactly whose usage they're billing for.

You'll find it on your gas bill, on the meter, or your supplier can give it to you over the phone if you ask.

Why Do These Numbers Matter?

Think of your MPAN or MPRN like a bank account number for your energy. It's how your supplier keeps your billing accurate, and it's what gets used behind the scenes whenever you switch.

It's also worth having on hand if you ever have an issue with your meter or your bill.

Decoding the Other Numbers on Your Meter

If you've looked closely at your MPAN, you'll have spotted extra digits that don't seem to be part of the main number. These break down into three things: your profile class, your Line Loss Factor, and your distributor ID. Here's what each one tells you.

Line Loss Factor (LLF)

This one's about efficiency, not usage. As electricity travels from the power station to your meter, some of it is lost along the way; distribution losses alone typically account for 6 to 7% of all electricity generated, according to UK Power Networks. Your LLF reflects the estimated cost of that loss for your specific area, along with other network charges from your local distributor.

The further your premises are from the nearest distribution centre, the longer the cables, and the more that loss tends to cost. It's one of the reasons energy prices can vary by location.