|
ABC123A and A123ABC (to 2001) |
||
| Code | ||
|---|---|---|
| A | London | |
| AA | Hampshire | Bournemouth |
| AB | Worcestershire | Worcester |
| AC | Warwickshire | Coventry |
| AD | Gloucestershire | Gloucester |
| AE | Bristol | Bristol |
| AF | Cornwall | Truro |
| AG | Ayrshire | Kingston-upon-Hull |
| AH | Norfolk | Norwich |
| AI | Meath | |
| AJ | Yorkshire | N Middlesbrough |
| AK | Bradford | Sheffield |
| AL | Nottinghamshire | Nottingham |
| AM | Wiltshire | Swindon |
| AN | West Ham | Reading |
| AO | Cumberland | Carlisle |
| AP | Sussex | E Brighton |
| AQ | ||
| AR | Hertfordshire | Chelmsford |
| AS | Nairn | Inverness |
| AT | Kingston-upon-Hull | Kingston-upon-Hull |
| AU | Nottingham | Nottingham |
| AV | Aberdeenshire | Peterborough |
| AW | Shropshire | Shrewsbury |
| AX | Monmouthshire | Cardiff |
| AY | Leicestershire | Leicester |
| AZ | Belfast | Belfast |
| B | Lancashire | |
| BA | Salford | Manchester |
| BB | Newcastle-upon-Tyne | Newcastle-upon-Tyne |
| BC | Leicester | Leicester |
| BD | Northamptonshire | Northampton |
| BE | Lincolnshire | (Lindsey) Lincoln |
| BF | Staffordshire | Stoke-on-Trent |
| BG | Birkenhead | Liverpool |
| BH | Buckinghamshire | Luton |
| BI | Monaghan | |
| BJ | Suffolk | E Ipswich |
| BK | Portsmouth | Portsmouth |
| BL | Berkshire | Reading |
| BM | Bedfordshire | Luton |
| BN | Bolton | Manchester |
| BO | Cardiff | Cardiff |
| BP | Sussex | W Portsmouth |
| BQ | ||
| BR | Sunderland | Newcastle-upon-Tyne |
| BS | Orkney | Aberdeen |
| BT | Yorkshire | E Leeds |
| BU | Oldham | Manchester |
| BV | Blackburn | Preston |
| BW | Oxfordshire | Oxford |
| BX | Carmarthenshire | Haverfordwest |
| BY | Croydon | London NW |
| BZ | Down | Belfast |
| C | Yorkshire | W |
| CA | Denbighshire | Chester |
| CB | Blackburn | Manchester |
| CC | Caernarvonshire | Bangor |
| CD | Brighton | Brighton |
| CE | Cambridgeshire | Peterborough |
| CF | Suffolk | W Reading |
| CG | Hampshire | Bournemouth |
| CH | Derby | Nottingham |
| CI | Laois | |
| CJ | Herefordshire | Gloucester |
| CK | Preston | Preston |
| CL | Norwich | Norwich |
| CM | Birkenhead | Liverpool |
| CN | Gateshead | Newcastle-upon-Tyne |
| CO | Plymouth | Exeter |
| CP | Halifax | Huddersfield |
| CQ | ||
| CR | Southampton | Portsmouth |
| CS | Ayrshire | Glasgow |
| CT | Lincolnshire | (Kesteven) Lincoln |
| CU | South Shields | Newcastle-upon-Tyne |
| CV | Cornwall | Truro |
| CW | Burnley | Preston |
| CX | Huddersfield | Huddersfield |
| CY | Swansea | Swansea |
| CZ | Belfast | |
| D | Kent | |
| DA | Wolverhampton | Birmingham |
| DB | Stockport | Manchester |
| DC | Middlesbrough | Middlesbrough |
| DD | Gloucestershire | Gloucester |
| DE | Pembrokeshire | Haverfordwest |
| DF | Gloucestershire | Gloucester |
| DG | Gloucestershire | Gloucester |
| DH | Walsall | Dudley |
| DI | Roscommon | |
| DJ | St Helens | Liverpool |
| DK | Rochdale | Manchester |
| DL | Isle of Wight | Portsmouth |
| DM | Flintshire | Chester |
| DN | York | Leeds |
| DO | Lincolnshire | (Holland) Lincoln |
| DP | Reading | Reading |
| DQ | ||
| DR | Plymouth | Exeter |
| DS | Peeblesshire | Glasgow |
| DT | Doncaster | Sheffield |
| DU | Coventry | Coventry |
| DV | Devon | Exeter |
| DW | Newport | (Mon) Cardiff |
| DX | Ipswitch | Ipswich |
| DY | Hastings | Brighton |
| DZ | Antrim | Belfast |
| E | Staffordshire | |
| EA | West Bromwich | Dudley |
| EB | Isle of Ely | Peterborough |
| EC | Westmorland | Preston |
| ED | Warrington | Liverpool |
| EE | Grimsby | Lincoln |
| EF | West Hartlepool | Middlesbrough |
| EG | Soke of Peterborough | Peterborough |
| EH | Stoke-on-Trent | Stoke-on-Trent |
| EI | Sligo | |
| EJ | Cardiganshire | Haverfordwest |
| EK | Wigan | Liverpool |
| EL | Bournemouth | Bournemouth |
| EM | Bootle | Liverpool |
| EN | Bury | Manchester |
| EO | Barrow-in-Furness | Preston |
| EP | Montgomeryshire | Swansea |
| EQ | ||
| ER | Cambridgeshire | Peterborough |
| ES | Perthshire | Dundee |
| ET | Rotherham | Sheffield |
| EU | Brecknockshire | Bristol |
| EV | Essex | Chelmsford |
| EW | Huntingdonshire | Peterborough |
| EX | Great Yarmouth | Norwich |
| EY | Anglesey | Bangor |
| EZ | Belfast | |
| F | Essex | |
| FA | Burton-on-Trent | Stoke-on-Trent |
| FB | Bath | Bristol |
| FC | Oxford | Oxford |
| FD | Dudley | Dudley |
| FE | Lincoln | Lincoln |
| FF | Merionethshire | Bangor |
| FG | Fifeshire | Brighton |
| FH | Gloucester | Gloucester |
| FI | Tipperary | |
| FJ | Exeter | Exeter |
| FK | Worcester | Dudley |
| FL | Soke of Peterborough | Peterborough |
| FM | Chester | Chester |
| FN | Canterbury | Maidstone |
| FO | Radfordshire | Gloucester |
| FP | Rutland | Leicester |
| FQ | ||
| FR | Blackpool | Preston |
| FS | Edinburgh | Edinburgh |
| FT | Tynemouth | Newcastle-upon-Tyne |
| FU | Lincolnshire | (Lindsey) Lincoln |
| FV | Blackpool | Preston |
| FW | Lincolnshire | (Lindsey) Lincoln |
| FX | Dorset | Bournemouth |
| FY | Southport | Liverpool |
| FZ | Belfast | |
| G | Glasgow | |
| GA | Glasgow | Glasgow |
| GB | Glasgow | Glasgow |
| GC | London | London SW |
| GD | Glasgow | Glasgow |
| GE | Glasgow | Glasgow |
| GF | London | London SW |
| GG | Glasgow | Glasgow |
| GH | London | London SW |
| GI | ||
| GJ | London | London SW |
| GK | London | London SW |
| GL | Bath | Truro |
| GM | Motherwell and Wishaw | Reading |
| GN | London | London SW |
| GO | London | London SW |
| GP | London | London SW |
| GQ | ||
| GR | Sunderland | Newcastle-upon-Tyne |
| GS | Perthshire | Luton |
| GT | London | London SW |
| GU | London | London SE |
| GV | Suffolk | W Ipswich |
| GW | London | London SE |
| GX | London | London SE |
| GY | London | London SE |
| GZ | Belfast | |
| H | Middlesex | |
| HA | Smethwick | Dudley |
| HB | Merthyr Tydfil | Cardiff |
| HC | Eastbourne | Brighton |
| HD | Dewsbury | Huddersfield |
| HE | Barnsley | Sheffield |
| HF | Wallasey | Liverpool |
| HG | Burnley | Preston |
| HH | Carlisle | Carlisle |
| HI | Tipperary | |
| HJ | Southend | Chelmsford |
| HK | Essex | Chelmsford |
| HL | Wakefield | Sheffield |
| HM | East Ham | London C |
| HN | Darlington | Middlesbrough |
| HO | Hampshire | Bournemouth |
| HP | Coventry | Coventry |
| HQ | ||
| HR | Wiltshire | Swindon |
| HS | Renfrewshire | Glasgow |
| HT | Bristol | Bristol |
| HU | Bristol | Bristol |
| HV | East Ham | London C |
| HW | Bristol | Bristol |
| HX | Middlesex | London C |
| HY | Bristol | Bristol |
| HZ | Tyrone | |
| IA | Antrim | Belfast |
| IB | Armagh | Belfast |
| IC | Carlow | |
| ID | Cavan | |
| IE | Clare | |
| IF | Cork (County) | |
| IG | ||
| IH | Donegal | |
| II | ||
| IJ | Down | Belfast |
| IK | City and County of Dublin | |
| IL | Fermanagh | Belfast |
| IM | Galway | |
| IN | Kerry | |
| IO | Kildare | |
| IP | Kilkenny | |
| IQ | ||
| IR | Offaly | |
| IS | ||
| IT | Leitrim | |
| IU | Limerick | |
| IV | ||
| IW | Londonderry | Belfast |
| IX | Longford | |
| IY | Louth | |
| IZ | Mayo | |
| J | Durham (County) | |
| JA | Stockport | Manchester |
| JB | Berkshire | Reading |
| JC | Caernarvonshire | Bangor |
| JD | West Ham | London C |
| JE | Isle of Ely | Peterborough |
| JF | Leicester | Leicester |
| JG | Canterbury | Maidstone |
| JH | Hertfordshire | Reading |
| JI | Tyrone | Belfast |
| JJ | London | Maidstone |
| JK | Eastbourne | Brighton |
| JL | Lincolnshire | (Holland) Lincoln |
| JM | Westmorland | Reading |
| JN | Southend | Chelmsford |
| JO | Oxford | Oxford |
| JP | Wigan | Liverpool |
| JQ | ||
| JR | Northumberland | Newcastle-upon-Tyne |
| JS | Ross and Cromarty | Inverness |
| JT | Dorset | Bournemouth |
| JU | Leicestershire | Leicester |
| JV | Grimsby | Lincoln |
| JW | Wolverhampton | Birmingham |
| JX | Halifax | Huddersfield |
| JY | Plymouth | Exeter |
| JZ | Down | |
| K | Liverpool | |
| KA | Liverpool | Liverpool |
| KB | Liverpool | Liverpool |
| KC | Liverpool | Liverpool |
| KD | Liverpool | Liverpool |
| KE | Kent | Maidstone |
| KF | Liverpool | Liverpool |
| KG | Cardiff | Cardiff |
| KH | Kingston-upon-Hull | Kingston-upon-Hull |
| KI | Waterford | |
| KJ | Kent | Maidstone |
| KK | Kent | Maidstone |
| KL | Kent | Maidstone |
| KM | Kent | Maidstone |
| KN | Kent | Maidstone |
| KO | Kent | Maidstone |
| KP | Kent | Maidstone |
| KQ | ||
| KR | Kent | Maidstone |
| KS | Roxburghshire | Edinburgh |
| KT | Kent | Maidstone |
| KU | Bradford | Sheffield |
| KV | Coventry | Coventry |
| KW | Bradford | Sheffield |
| KX | Buckinghamshire | Luton |
| KY | Bradford | Sheffield |
| KZ | Antrim | |
| L | Glamorganshire | |
| LA | London | London NW |
| LB | London | London NW |
| LC | London | London NW |
| LD | London | London NW |
| LE | London | London NW |
| LF | London | London NW |
| LG | Cheshire | Chester |
| LH | London | London NW |
| LI | Westmeath | |
| LJ | Bournemouth | Bournemouth |
| LK | London | London NW |
| LL | London | London NW |
| LM | London | London NW |
| LN | London | London NW |
| LO | London | London NW |
| LP | London | London NW |
| LQ | ||
| LR | London | London NW |
| LS | Selkirkshire | Edinburgh |
| LT | London | London NW |
| LU | London | London NW |
| LV | Liverpool | Liverpool |
| LW | London | London NW |
| LX | London | London NW |
| LY | London | London NW |
| LZ | Armagh | |
| M | Cheshire | |
| MA | Cheshire | Chester |
| MB | Cheshire | Chester |
| MC | Middlesex | London NE |
| MD | Middlesex | London NE |
| ME | Middlesex | London NE |
| MF | Middlesex | London NE |
| MG | Middlesex | London NE |
| MH | Middlesex | London NE |
| MI | Wexford | |
| MJ | Bedfordshire | Luton |
| MK | Middlesex | London NE |
| ML | Middlesex | London NE |
| MM | Middlesex | London NE |
| MN | Isle of Man | Isle of Man |
| MO | Berkshire | Reading |
| MP | Middlesex | London NE |
| MQ | ||
| MR | Wiltshire | Swindon |
| MS | Stirlingshire | Edinburgh |
| MT | Middlesex | London NE |
| MU | Middlesex | London NE |
| MV | Middlesex | London NE |
| MW | Wiltshire | Swindon |
| MX | Middlesex | London NE |
| MY | Middlesex | London NE |
| MZ | Belfast | |
| N | Manchester | |
| NA | Manchester | Manchester |
| NB | Manchester | Manchester |
| NC | Manchester | Manchester |
| ND | Manchester | Manchester |
| NE | Manchester | Manchester |
| NF | Manchester | Manchester |
| NG | Norfolk | Norwich |
| NH | Northampton | Northampton |
| NI | Wicklow | |
| NJ | Sussex | E Brighton |
| NK | Hertfordshire | Luton |
| NL | Northumberland | Newcastle-upon-Tyne |
| NM | Bedfordshire | Luton |
| NN | Nottinghamshire | Nottingham |
| NO | Essex | Chelmsford |
| NP | Worcestershire | Worcester |
| NQ | ||
| NR | Leicestershire | Leicester |
| NS | Sutherland | Glasgow |
| NT | Shropshire | Shrewsbury |
| NU | Derbyshire | Nottingham |
| NV | Northamptonshire | Northampton |
| NW | Leeds | Leeds |
| NX | Warwickshire | Dudley |
| NY | Glamoghanshire | Cardiff |
| NZ | Londonderry | |
| O | Birmingham | |
| OA | Birmingham | Birmingham |
| OB | Birmingham | Birmingham |
| OC | Birmingham | Birmingham |
| OD | Devon | Exeter |
| OE | Birmingham | Birmingham |
| OF | Birmingham | Birmingham |
| OG | Birmingham | Birmingham |
| OH | Birmingham | Birmingham |
| OI | Belfast | Belfast |
| OJ | Birmingham | Birmingham |
| OK | Birmingham | Birmingham |
| OL | Birmingham | Birmingham |
| OM | Birmingham | Birmingham |
| ON | Birmingham | Birmingham |
| OO | Essex | Chelmsford |
| OP | Birmingham | Birmingham |
| OQ | ||
| OR | Hampshire | Portsmouth |
| OS | Wigtownshire | Glasgow |
| OT | Hampshire | Portsmouth |
| OU | Hampshire | Bristol |
| OV | Birmingham | Birmingham |
| OW | Southampton | Portsmouth |
| OX | Birmingham | Birmingham |
| OY | Croydon | London NW |
| OZ | Belfast | |
| P | Surrey | |
| PA | Surrey | Guildford |
| PB | Surrey | Guildford |
| PC | Surrey | Guildford |
| PD | Surrey | Guildford |
| PE | Surrey | Guildford |
| PF | Surrey | Guildford |
| PG | Surrey | Guildford |
| PH | Surrey | Guildford |
| PI | Cork | |
| PJ | Surrey | Guildford |
| PK | Surrey | Guildford |
| PL | Surrey | Guildford |
| PM | Sussex | E Guildford |
| PN | Sussex | E Brighton |
| PO | Sussex | W Portsmouth |
| PP | Buckinghamshire | Luton |
| PQ | ||
| PR | Dorset | Bournemouth |
| PS | Shetland | Aberdeen |
| PT | Durham (County) | Newcastle-upon-Tyne |
| PU | Essex | Chelmsford |
| PV | Ipswich | Ipswich |
| PW | Norfolk | Norwich |
| PX | Sussex | W Portsmouth |
| PY | Yorkshire | N Middlesbrough |
| PZ | Belfast | |
| QA | London | (temporary import) |
| QB | London | (temporary import) |
| QC | London | (temporary import) |
| QD | London | (temporary import) |
| QE | London | (temporary import) |
| QF | London | (temporary import) |
| QG | London | (temporary import) |
| QH | London | (temporary import) |
| QI | ||
| QJ | London | (temporary import) |
| QK | London | (temporary import) |
| QL | London | (temporary import) |
| QM | London | (temporary import) |
| QN | London | (temporary import) |
| QO | ||
| QP | London | (temporary import) |
| London | (temporary import) | |
| QR | ||
| QS | London | (temporary import) |
| QT | ||
| QU | ||
| QV | ||
| QW | ||
| QX | ||
| QY | ||
| QZ | ||
| R | Derbyshire | |
| RA | Derbyshire | Nottingham |
| RB | Derbyshire | Nottingham |
| RC | Derby | Nottingham |
| RD | Reading | Reading |
| RE | Staffordshire | Stoke-on-Trent |
| RF | Staffordshire | Stoke-on-Trent |
| RG | Aberdeen | Newcastle-upon-Tyne |
| RH | Kingston-upon-Hull | Kingston-upon-Hull |
| RI | City and County of Dublin | |
| RJ | Salford | Manchester |
| RK | Croydon | London NW |
| RL | Cornwall | Truro |
| RM | Cumberland | Carlisle |
| RN | Preston | Preston |
| RO | Hertfordshire | Luton |
| RP | Northamptonshire | Northampton |
| RQ | ||
| RR | Nottinghamshire | Nottingham |
| RS | Aberdeen | Aberdeen |
| RT | Suffolk | E Ipswich |
| RU | Bournemouth | Bournemouth |
| RV | Portsmouth | Portsmouth |
| RW | Coventry | Coventry |
| RX | Berkshire | Reading |
| RY | Leicester | Leicester |
| RZ | Antrim | |
| S | Edinburgh | |
| SA | Aberdeenshire | Aberdeen |
| SB | Argyllshire | Glasgow |
| SC | Edinburgh | Edinburgh |
| SD | Ayrshire | Glasgow |
| SE | Banffshire | Aberdeen |
| SF | Edinburgh | Edinburgh |
| SG | Edinburgh | Edinburgh |
| SH | Berwickshire | Edinburgh |
| SI | ||
| SJ | Bute | Glasgow |
| SK | Caithness | Inverness |
| SL | Clackmannanshire | Dundee |
| SM | Dumfriesshire | Carlisle |
| SN | Dunbartonshire | Dundee |
| SO | Morayshire | Aberdeen |
| SP | Fifeshire | Dundee |
| SQ | ||
| SR | Angus | Dundee |
| SS | East Lothian | Aberdeen |
| ST | Inverness-shire | Inverness |
| SU | Kincardineshire | Glasgow |
| SV | Kinross-shire | |
| SW | Kirkcudbrightshire | Carlisle |
| SX | West Lothian | Edinburgh |
| SY | Midlothian | |
| SZ | Down | |
| T | Devon | |
| TA | Devon | Exeter |
| TB | Lancashire | Liverpool |
| TC | Lancashire | Bristol |
| TD | Lancashire | Manchester |
| TE | Lancashire | Manchester |
| TF | Lancashire | Reading |
| TG | Glamorganshire | Cardiff |
| TH | Carmarthenshire | Swansea |
| TI | Limerick | |
| TJ | Lancashire | Liverpool |
| TK | Dorset | Exeter |
| TL | Lincolnshire | (Kesteven) Lincoln |
| TM | Bedfordshire | Luton |
| TN | Newcastle-upon-Tyne | Newcastle-upon-Tyne |
| TO | Nottingham | Nottingham |
| TP | Portsmouth | Portsmouth |
| TQ | ||
| TR | Southampton | Portsmouth |
| TS | Dundee | Dundee |
| TT | Devon | Exeter |
| TU | Cheshire | Chester |
| TV | Nottingham | Nottingham |
| TW | Essex | Chelmsford |
| TX | Glamorganshire | Cardiff |
| TY | Northumberland | Newcastle-upon-Tyne |
| TZ | Belfast | |
| U | Leeds | |
| UA | Leeds | Leeds |
| UB | Leeds | Leeds |
| UC | London | London C |
| UD | Oxfordshire | Oxford |
| UE | Warwickshire | Dudley |
| UF | Brighton | Brighton |
| UG | Leeds | Leeds |
| UH | Cardiff | Cardiff |
| UI | Londonderry | Belfast |
| UJ | Shropshire | Shrewsbury |
| UK | Wolverhampton | Birmingham |
| UL | London | London C |
| UM | Leeds | Leeds |
| UN | Denbighshire | Exeter |
| UO | Devon | Exeter |
| UP | Durham (County) | Newcastle-upon-Tyne |
| UQ | ||
| UR | Hertfordshire | Luton |
| US | Glasgow | Glasgow |
| UT | Leicestershire | Leicester |
| UU | London | London C |
| UV | London | London C |
| UW | London | London C |
| UX | Shropshire | Shrewsbury |
| UY | Worcestershire | Worcester |
| UZ | Belfast | |
| V | Lanarkshire | |
| VA | Lanarkshire | Peterborough |
| VB | Croydon | Maidstone |
| VC | Coventry | Coventry |
| VD | Lanarkshire | |
| VE | Cambridgeshire | Peterborough |
| VF | Norfolk | Norwich |
| VG | Norwich | Norwich |
| VH | Huddersfield | Huddersfield |
| VI | ||
| VJ | Herefordshire | Gloucester |
| VK | Newcastle-upon-Tyne | Newcastle-upon-Tyne |
| VL | Lincoln | Lincoln |
| VM | Manchester | Manchester |
| VN | Yorkshire | N Middlesbrough |
| VO | Nottinghamshire | Nottingham |
| VP | Birmingham | Birmingham |
| VQ | ||
| VR | Manchester | Manchester |
| VS | Greenock | Luton |
| VT | Stoke-on-Trent | Stoke-on-Trent |
| VU | Manchester | Manchester |
| VV | Northampton | Northampton |
| VW | Essex | Chelmsford |
| VX | Essex | Chelmsford |
| VY | York | Leeds |
| VZ | Tyrone | |
| W | Sheffield | |
| WA | Sheffield | Sheffield |
| WB | Sheffield | Sheffield |
| WC | Essex | Chelmsford |
| WD | Warwickshire | Dudley |
| WE | Sheffield | Sheffield |
| WF | Yorkshire | E Sheffield |
| WG | Stirlingshire | Sheffield |
| WH | Bolton | Manchester |
| WI | Waterford | |
| WJ | Sheffield | Sheffield |
| WK | Coventry | Coventry |
| WL | Oxford | Oxford |
| WM | Southport | Liverpool |
| WN | Swansea | Swansea |
| WO | Monmouthshire | Cardiff |
| WP | Worcestershire | Worcester |
| WQ | ||
| WR | Yorkshire | W Leeds |
| WS | Edinburgh | Bristol |
| WT | Yorkshire | W Leeds |
| WU | Yorkshire | W Leeds |
| WV | Wiltshire | Brighton |
| WW | Yorkshire | W Leeds |
| WX | Yorkshire | W Leeds |
| WY | Yorkshire | W Leeds |
| WZ | Belfast | |
| X | Northumberland | |
| XA | London | |
| XB | London | |
| XC | London | |
| XD | London | |
| XE | London | |
| XF | London | |
| XG | Middlesbrough | |
| XH | London | |
| XI | Belfast | Belfast |
| XJ | Manchester | |
| XK | London | |
| XL | London | |
| XM | London | |
| XN | London | |
| XO | London | |
| XP | London | |
| XQ | ||
| XR | London | |
| XS | Paisley | |
| XT | London | |
| XU | London | |
| XV | London | |
| XW | London | |
| XX | London | |
| XY | London | |
| XZ | Armagh | |
| Y | Somerset | |
| YA | Somerset | Taunton |
| YB | Somerset | Taunton |
| YC | Somerset | Taunton |
| YD | Somerset | Taunton |
| YE | London | London C |
| YF | London | London C |
| YG | Yorkshire | W Leeds |
| YH | London | London C |
| YI | City and County of Dublin | |
| YJ | Dundee | Brighton |
| YK | London | London C |
| YL | London | London C |
| YM | London | London C |
| YN | London | London C |
| YO | London | London C |
| YP | London | London C |
| YQ | ||
| YR | London | London C |
| YS | Glasgow | Glasgow |
| YT | London | London C |
| YU | London | London C |
| YV | London | London C |
| YW | London | London C |
| YX | London | London C |
| YY | London | London C |
| YZ | Londonderry | |
| Z | City and County of Dublin | |
| ZA | City and County of Dublin | |
| ZB | Cork (County) | |
| ZC | City and County of Dublin | |
| ZD | City and County of Dublin | |
| ZE | City and County of Dublin | |
| ZF | Cork (Borough) | |
| ZG | ||
| ZH | City and County of Dublin | |
| ZI | City and County of Dublin | |
| ZJ | City and County of Dublin | |
| ZK | Cork (County) | |
| ZL | City and County of Dublin | |
| ZM | Galway | |
| ZN | Meath | |
| ZO | City and County of Dublin | |
| ZP | Donegal | |
| ZQ | ||
| ZR | Wexford | |
| ZS | ||
| ZT | Cork (County) | |
| ZU | City and County of Dublin | |
| ZV | ||
| ZW | Kildare | |
| ZX | Kerry | |
| ZY | Louth | |
| ZZ | Dublin | (temporary import) |