I wondered if someone could find the geographic number for the following please :   
Southern Electric Power Distribution - 0870 9050806

For each area of the country one electricity supplier holds MPAS numbers for all electricity meters in that region. (i am interested in the South East)

You need the MPAS number if you want to move electricity suppliers or find out who supplies your electricity when you move into a new home.
I have called Southern Electric on their geographic number but they say that the MPAS part of the company is not strictly their company and they cant forward me.

Many thanks, Debbie

PS if someone does find a MPAS companies list there are also companies for the following regions (I havent checked if these are already on your site)
Eastern c/o EDF Energy 0870-1963082
East Midlands c/o East Midlands Electricity Distribution 0845-6030618
London c/o EDF 0845-6000102
North Wales, Merseyside and shropshire c.o SP Manweb 0845-2709101
West Midlands c/o central netwerks 0845-6030618
NE England c/o Northern Electric Distribution 0845-6013268
NW England c/o United utliities 0870-7510093
Northern Scotland c/o Scottish Hydro Electric power 0870-9009690
Southern scotland c/o SP distribution 0845-2709101
SE England c/o Seeboard 0845-6015467
South Wales and SW England c/o Western Power distribution 0845-6015972
Yorkshire c/o Yorkshire Electricity Distribution 0845-3300889