There is a BizList for every post code in the country. The first column is in area name order (ie Aberdeen) followed by the post code and the third column is an alphabetical listing of the area code (ie AB) followed by the area

Aberdeen AB   AB Aberdeen
Bath BA   AL St Albans
Belfast BT   B Birmingham
Birmingham B   BA Bath
Blackburn BB   BB Blackburn
Blackpool FY   BD Bradford
Bolton BL   BH Bournemouth
Bournemouth BH   BL Bolton
Bradford BD   BN Brighton
Brighton BN   BR Bromley
Bristol BS   BS Bristol
Bromley BR   BT Belfast
Canterbury CT   CA Carlisle
Cardiff CF CB Cambridge
Cambridge CB   CF Cardiff
Carlisle CA   CH Chester
Chelmsford CM   CM Chelmsford
Chester CH CO Colchester
Cleveland TS   CR Croydon
Colchester CO   CT Canterbury
Coventry CV   CV Coventry
Crewe CW   CW Crewe
Croydon CR   DA Dartford
Darlington DL   DD Dundee
Dartford DA   DE Derby
Derby DE   DG Dumfries
Doncaster DN   DH Durham
Dorchester DT   DL Darlington
Dudley DY   DN Doncaster
Dundee DD   DT Dorchester
Dumfries DG   DY Dudley
Durham DH   E East London
East London E   EC East Central London
East Central London EC   EH Edinburgh
Edinburgh EH   EN Enfield
Enfield EN   EX Exeter
Exeter EX   FK Falkirk
Falkirk FK   FY Blackpool
Galashiels TD   G Glasgow
Glasgow G   GL Gloucester
Gloucester GL   GU Guildford
Guernsey GY   GY Guernsey
Guildford GU   HA Harrow
Halifax HX   HD Huddersfield
Harrogate HG   HG Harrogate
Harrow HA   HP Hemel Hempstead
Hemel Hempstead HP   HR Hereford
Hereford HR   HS Western Isles
Huddersfield HD   HU Hull
Hull HU   HX Halifax
Ilford IG   IG Ilford
Inverness IV   IM Isle of Man
Ipswich IP   IP Ipswich
Isle of Man IM   IV Inverness
Jersey JE   JE Jersey
Kilmarnock KA   KA Kilmarnock
Kingston Upon Thames KT   KT Kingston Upon Thames
Kirkcaldy KY   KW Kirkwall
Kirkwall KW   KY Kirkcaldy
Lancaster LA   L Liverpool
Leeds LS   LA Lancaster
Leicester LE   LD Llandrindod Wells
Lerwick ZE   LE Leicester
Lincoln LN   LL Llandudno
Liverpool L   LN Lincoln
Llandrindod Wells LD   LS Leeds
Llandudno LL   LU Luton
Luton LU   M Manchester
Manchester M   ME Medway
Medway ME   MK Milton Keynes
Milton Keynes MK   ML Motherwell
Motherwell ML   N North London
Newcastle Upon Tyne NE   NE Newcastle Upon Tyne
Newport NP   NG Nottingham
North London N   NN Northampton
North West London NW   NP Newport
Northampton NN   NR Norwich
Norwich NR   NW North West London
Nottingham NG   OL Oldham
Oldham OL   OX Oxford
Oxford OX   PA Paisley
Paisley PA   PE Peterborough
Perth PH   PH Perth
Peterborough PE   PL Plymouth
Plymouth PL   PO Portsmouth
Portsmouth PO   PR Preston
Preston PR RG Reading
Reading RG   RH Redhill
Redhill RH RM Romford
Romford RM   S Sheffield
Salisbury SP   SA Swansea
Sheffield S   SE South East London
Shrewsbury SY   SG Stevenage
Slough SL   SK Stockport
South East London SE   SL Slough
South West London SW   SM Sutton
Southampton SO   SN Swindon
Southend on Sea SS   SO Southampton
St Albans AL   SP Salisbury
Stevenage SG   SR Sunderland
Stockport SK   SS Southend on Sea
Stoke on Trent ST   ST Stoke on Trent
Sunderland SR   SW South West London
Sutton SM   SY Shrewsbury
Swansea SA   TA Taunton
Swindon SN   TD Galashiels
Taunton TA   TF Telford
Telford TF   TN Tonbridge
Tonbridge TN   TQ Torquay
Torquay TQ   TR Truro
Truro TR   TS Cleveland
Twickenham TW   TW Twickenham
Uxbridge UB   UB Uxbridge
Walsall WS   W West London
Wakefield WF   WA Warrington
Warrington WA   WC West Central London
Watford WD   WD Watford
West London W   WF Wakefield
West Central London WC   WN Wigan
Western Isles HS   WR Worcester
Wigan WN   WS Walsall
Wolverhampton WV   WV Wolverhampton
Worcester WR   YO York
York YO   ZE Lerwick