What is a Meter Point Administration Number (MPAN/MPRN)?
Edited
A Meter Point Administration Number (MPAN/MPRN), also known as a Supply Number or S-Number, is a unique 13-to-21 digit number used to identify every single electricity supply point to a property.
You can easily locate your MPAN/MPRN on your gas/electricity bill (often in a box labeled Supply Number) or by using online search tools