I haven’t got a map but I’ll try in text form. I’ll restrict myself to the areas covered by SWR crew
Wimbledon ASC
Panel 1
Platforms 1-14 at Waterloo to Clapham cutting (Up and down Main Fast and Slow)
Panel 2
Platforms 15-24 at Waterloo to Putney (including Point Pleasant Junction)
Panel 3
Clapham cutting and Point Pleasant Junction to Berrylands/Norbiton/London end of Motspur Park
Panel 4
London end of Motspur Park to Chessington South/Boxhill/Bookham
Panel 5
Putney to North Sheen/Chiswick
Feltham ASC
Panel 1
Norbiton/North Sheen to Whitton/Fulwell and everywhere in between
Shepperton W/S (operated by Panel 1 signaller)
Fulwell - Shepperton
Panel 2
Whitton/Chiswick to country end of Feltham
Panel 3
Country end of Feltham to Windsor/Egham
Panel 4
Egham to country end of Chertsey/Frimley/Bracknell
Wokingham SB
Bracknell to country end of Earley
Thames Valley Signalling Centre, Didcot
Twyford W/S
Country end of Earley to Reading 4, 5 & 6
Reading station W/S
Reading 1, 2 & 3 to Triangle sidings
Reading West Junction W/S
Triangle sidings to Southcote Junction
Bath (?) and Temple Meads W/S cover from Bradford on Avon to Temple Meads but I’m not sure of the specifics of that particular area I’m afraid
Woking ASC
Panel 1
Berrylands/Chertsey to Cobham/Byfleet & New Haw
Panel 2
Byfleet & New Haw to Deepcut/Worplesdon/Foxhills Tunnel
Panel 3
Foxhills Tunnel/Frimley/Aldersh*t North Junction to Alton
Guildford ASC
Aldersh*t North Junction/Worplesdon/Bookham/Cobham to country end of Shalford Junction
Dorking SB
Boxhill to Dorking
Farncombe SB
C/E of Shalford Junction to C/E of Milford
Haslemere SB
C/E of Milford to Langley (between Liphook & Liss)
Petersfield SB
Langley to C/E of Petersfield
Havant ASC
W/S 1 - C/E of Petersfield/Portchester to Portcreek Junction
W/S 2 Portcreek Junction - Portsmouth Harbour
Basingstoke ASC
Main panel - Deepcut/Southcote Junction to Steventon/Grateley
Dorset Coast panel - Parkstone to L/E of Moreton
West of England panel - Hunts Path (between Tisbury & Gillingham) to Whimple (including single line between Yeovil Junction and Pen Mill)
Salisbury ASC
Grateley/Mottisfont & Dunbridge to Hunts Path/Upton Lovell (bear Warminster)
Westbury PSB
Upton Lovell - Bradford-on-Avon/between Castle Cary and Pen Mill
Exmouth Junction SB
Whimple to St James Park
Exeter PSB
Panel B - St James Park to Exeter St Davids (including New Yard)
Yeovil Pen Mill SB
Between Castle Cary & Pen Mill to between Pen Mill & Yeovil Junction/Maiden Newton
Eastleigh ASC
Panel 1
Steventon/Halterworth to Swaythling/Hedge End
Panel 2
Swaythling/Hedge End to Portchester/Millbrook
Panel 3
Millbrook to Ashurst/Mottisfont & Dunbridge (including Halterworth - Romsey)
Brockenhurst SB
Ashurst - Sway/Lymington Pier
Bournemouth ASC
Sway - Parkstone
Dorchester SB
Moreton - Weymouth
Hope that helps