| Road |
From |
To |
Notes |
| A4 road |
City of London (Holborn Circus) |
Avonmouth |
|
| A40 road |
City of London (near St. Paul's Cathedral) |
Fishguard |
|
| A41 road |
Central London (near Marble Arch) |
Birkenhead |
|
| A42 road |
Appleby Magna |
Diseworth |
|
| A43 road |
M40 motorway Junction 10 north of Bicester |
Stamford |
|
| A44 road |
Oxford |
Aberystwyth |
Officially the most dangerous road in Wales between Aberystwyth and Llangurig. |
| A45 road |
Birmingham |
Near Thrapston |
|
| A46 road |
Bath |
Cleethorpes |
|
| A47 road |
Birmingham |
Great Yarmouth |
|
| A48 road |
Highnam near Gloucester |
Carmarthen |
Originally began in Worcester. Worcester to Newport is now A449. |
| A49 road |
Ross-on-Wye |
Bamber Bridge |
|
| A400 road |
Central London (Trafalgar Square) |
Archway |
|
| A401 road |
Central London (Piccadilly Circus) |
Angel |
|
| A402 road |
Central London (Marble Arch) |
Stamford Brook, Chiswick |
|
| A403 road |
M48 motorway Junction 1 near Aust |
Avonmouth |
|
| A404 road |
Central London (Edgware Road station) |
Maidenhead |
|
| A405 road |
Leavesden Green |
Near Park Street |
|
| A406 road |
Gunnersbury |
Beckton |
The North Circular Road |
| A407 road |
Harlesden |
Child's Hill |
|
| A408 road |
Harmondsworth |
Uxbridge |
|
| A409 road |
Northwick Park Hospital |
Bushey |
|
| A410 road |
Pinner |
Edgware |
|
| A411 road |
Watford |
Barnet |
|
| A412 road |
Slough |
Watford |
|
| A413 road |
Gerrards Cross |
Towcester |
|
| A414 road |
Near Hemel Hempstead |
Maldon |
|
| A415 road |
Berinsfield |
Witney |
|
| A416 road |
Amersham |
Berkhamsted |
|
| A417 road |
Streatley |
Leominster |
|
| A418 road |
Tiddington |
Ascot |
|
| A419 road |
Whitminster |
Swindon |
|
| A420 road |
Bristol |
Oxford |
|
| A421 road |
Brackley |
St Neots |
|
| A422 road |
Bedford |
Worcester |
Concurrent with the A46 between Stratford-upon-Avon and Alcester |
| A423 road |
Hinksey Hill |
Coventry |
Small section of the road is part of the Oxford Ring Road. Reprised at Banbury. |
| A424 road |
Burford |
A44 near Bourton-on-the-Hill |
|
| A425 road |
Daventry |
Warwick |
|
| A426 road |
Leicester |
Southam |
|
| A427 road |
Market Harborough |
Oundle |
|
| A428 road |
Coventry |
Cambridge |
|
| A429 road |
Chippenham |
Coventry |
|
| A430 road |
Quedgeley |
Longford, Gloucester |
|
| A431 road |
Bristol |
Bath |
|
| A432 road |
Bristol |
Old Sodbury |
|
| A433 road |
A46 at Dunkirk |
A429 SW of Cirencester |
|
| A434 |
Defunct |
|
Used to run from Malmesbury to Hardwicke |
| A435 road |
Birmingham |
Cirencester |
Concurrent with the A46 between Alcester and Teddington Hands |
| A436 road |
A417 near Brockworth |
A44 near Salford |
|
| A437 road |
Hamondsworth |
A40 Western Avenue |
Originally Gloucester to Newport, now A48. |
| A438 road |
M5 motorway Junction 9 |
Llanfilo |
|
| A439 road |
Stratford-upon-Avon |
A46 4 miles SW of Warwick |
|
| A440 |
Defunct |
|
Used to run from Pershore to Great Malvern |
| A441 road |
Birmingham |
Cookhill |
|
| A442 road |
Droitwich |
Whitchurch |
|
| A443 road |
Worcester |
Newnham Bridge |
|
| A444 road |
Baginton |
Burton upon Trent |
|
| A445 road |
Warwick |
A45 at Ryton-on-Dunsmore |
|
| A446 road |
Little Packington |
Roughley |
|
| A447 road |
Hinckley |
Coalville |
|
| A448 road |
Kidderminster |
Studley |
|
| A449 road |
Newport |
Stafford |
|
| A450 road |
Torton |
West Hagley |
|
| A451 road |
Stourbridge |
Great Witley |
|
| A452 road |
Leamington Spa |
Brownhills |
|
| A453 road |
Nottingham |
Birmingham |
|
| A454 road |
Bridgnorth |
Four Oaks |
|
| A455 road |
Defunct |
|
Used to run from M4 junction 24 in Ringland, Newport to George Street Bridge. Most is now part of the A48 Southern Distributor Road |
| A456 road |
Birmingham |
Woofferton |
|
| A457 road |
Birmingham |
Sedgley |
|
| A458 road |
Mallwyd |
Quinton |
|
| A459 road |
Halesowen |
Wolverhampton |
|
| A460 road |
Wolverhampton |
Rugeley |
|
| A461 road |
Lichfield |
Stourbridge |
Concurrent with the A41 between Wednesbury & Great Bridge |
| A462 road |
Wednesbury |
Laney Green |
|
| A463 road |
Wombourne |
Willenhall |
|
| A464 road |
Oaken |
Hollinswood |
|
| A465 road |
Bromyard |
M4 motorway, Llandarcy |
|
| A466 road |
Kingsthorne |
Chepstow |
|
| A467 road |
Duffryn, Newport |
A465, Brynmawr |
|
| A468 road |
Bassaleg, Newport |
A470, Nantgarw |
|
| A469 road |
A4161, Roath, Cardiff |
A465, Rhymney |
|
| A470 road |
Cardiff |
Llandudno |
|
| A471 |
Defunct |
|
Used to run from Usk to Abergavenny |
| A472 road |
Treharris |
Usk |
|
| A473 road |
Pontypridd |
Bridgend |
|
| A474 road |
Briton Ferry |
Ammanford |
|
| A475 road |
Newcastle Emlyn |
Lampeter |
|
| A476 road |
Llanelli |
Llandeilo |
|
| A477 road |
St Clears |
Johnston |
|
| A478 road |
Cardigan |
Tenby |
|
| A482 road |
Aberaeron |
Llanwrda |
|
| A483 road |
Swansea |
Chester |
|
| A484 road |
Cardigan |
Cadle near Swansea |
by way of Newcastle Emlyn, Carmarthen and Llanelli |
| A485 road |
Tanerdy |
Llanfarian |
|
| A487 road |
Haverfordwest |
Bangor |
|
| A488 road |
Penybont |
Shrewsbury |
|
| A489 road |
|
|
|
| Image:UK road A490.PNG A490 road |
Church Stoke |
Llanfyllin |
|
| A491 road |
Lydiate Ash |
Wall Heath |
|
| A493 road |
Machynlleth |
Dolgellau |
Via Tywyn |
| A494 road |
Queensferry |
Dolgellau |
|
| A495 road |
Whitchurch |
Oswestry |
|
| A496 road |
Llanelltyd |
Blaneau Ffestiniog |
Via Barmouth |
| A497 road |
Porthmadog |
Nefyn |
|
| A498 road |
Pen-y-Gwryd |
Porthmadog |
|
| A499 road |
A487 |
Abersoch |
|
| A4000 road |
Acton Town |
Harlesden |
|
| A4001 road |
Hanwell |
Hanwell |
|
| A4002 road |
Harlesden |
Harlesden |
Tubbs Road / Nightingale Road one-way system |
| A4003 road |
Brondesbury |
Willesden |
Willesden Lane |
| A4004 road |
Harlesden |
Harlesden |
|
| A4005 road |
West London (Hanger Lane gyratory) |
Roxeth |
|
| A4006 road |
Harrow |
Kenton |
Also known as Kenton Road |
| A4007 road |
Iver Heath |
Uxbridge |
|
| A4008 road |
Hatch End |
Watford |
|
| A4010 road |
High Wycombe |
Aylesbury |
|
| A4012 road |
Husborne Crawley |
A4146 |
|
| A4013 road |
Kingsditch |
Benhall |
|
| A4014 road |
|
|
|
| A4015 road |
Cheltenham |
Cheltenham |
|
| A4017 road |
Bristol |
Bromley Heath |
|
| A4018 road |
Bristol |
Cribbs Causeway |
|
| A4019 road |
Coombe Hill |
Cheltenham |
|
| A4020 road |
Shepherds Bush |
Denham |
|
| A4023 road |
Redditch |
Matchborough |
Used to run from Redditch to Coventry but nearly all the section has been downgraded to the B4101 upon completion of the M42 in 1986. |
| A4025 road |
Stourport-on-Severn |
A449 |
|
| A4026 road |
Sutton Coldfield |
Little Aston |
|
| A4029 road |
Edgbaston |
Edgbaston |
|
| A4030 road |
Bearwood |
Smethwick |
|
| A4031 road |
Smethwick |
Walsall |
|
| A4032 road |
Bristol |
Bristol |
|
| A4033 road |
Dudley |
Oldbury |
|
| A4034 road |
Quinton |
West Bromwich |
|
| A4035 |
Defunct |
|
Used to Run from West Bromwich to Great Bridge where it joined the A461 towards Dudley. This road was downgraded to an unclassified road upon the completion of the Black Country Spine Road in 1995. |
| A4036 road |
Dudley |
Pedmore |
|
| A4037 road |
Wednesbury |
Dudley |
|
| A4038 road |
Walsall |
Moxley |
|
| A4039 road |
Bilston |
Penn, West Midlands |
|
| A4040 road |
|
|
Birmingham Outer ring road |
| A4041 road |
West Bromwich |
Streetly |
|
| A4042 road |
Abergavenny |
A48, Newport |
|
| A4043 road |
Blaenavon B4246 |
Pontypool, A472 |
|
| A4044 road |
Redcliffe |
Bristol |
|
| A4046 road |
A465, Rassau |
A467, Aberbeeg |
|
| A4047 road |
A4048, Tredegar |
A465, Brynmawr |
|
| A4048 road |
A467, Crosskeys |
A465, Tredegar |
|
| A4049 road |
A4048, Pontllanfraith |
A469, New Tredegar |
|
| A4050 road |
A4232, Culverhouse Cross, Cardiff |
A4055, Barry |
|
| A4051 road |
Newport |
North Cwmbran |
|
| A4053 road |
|
|
Coventry Ring Road |
| A4054 road |
A4119, Llandaff, Cardiff |
A470, Cefn-Coed-y-Cymmer |
|
| A4055 road |
A4232, Cardiff Bay, Cardiff |
Barry Island, Barry |
|
| A4058 road |
A473, Glyntaff |
A4061, Treorchy |
|
| A4059 road |
A470, Abercynon |
A470, Between Brecon and Cefn-Coed-y-Cymmer |
|
| A4060 road |
A470, Pentrebach |
A465, Dowlais Top |
|
| A4061 road |
Bridgend |
Hirwaun |
|
| A4063 road |
Bridgend |
Cymer |
|
| A4064 road |
Sam |
Blaengarw |
|
| A4065 road |
Tondu |
Brynmenyn |
|
| A4066 road |
St Clears |
Pendine |
|
| A4067 road |
West Cross, Swansea |
Sennybridge |
|
| A4068 road |
Gurnos |
Brynamman |
|
| A4069 road |
Llandovery |
Gwaun-Cae-Curwen |
|
| A4071 road |
Dunsmore Heath |
Rugby |
|
| A4072 road |
M4, Junction 28, Newport |
A467, Bassaleg (concurrent with A467) |
|
| A4074 road |
Iffley |
Caversham |
Links Reading with Oxford |
| A4075 road |
Canaston Bridge |
Pembroke |
|
| A4076 road |
Haverfordwest |
Milford Haven |
|
| A4077 road |
Crickhowell |
Gilwern & Goviton |
|
| A4078 road |
Talgarth |
Three Cocks |
|
| A4079 road |
Three Cocks |
Llyswen |
|
| A4080 road |
Menai Bridge |
A55 |
|
| A4081 road |
Llandrindod Wells |
Newbridge-on-Wye |
|
| A4082 road |
Whitley, Coventry |
Binley, Coventry |
Allard Way |
| A4085 road |
Minffordd |
Caernarfon |
|
| A4086 road |
Capel Curig |
Caernarfon |
|
| A4087 road |
Bangor |
Bangor |
|
| A4088 road |
Willesden |
Neasden |
|
| A4089 road |
Alperton |
Wembley Park |
|
| A4090 road |
Wembley |
North Harrow |
|
| A4091 road |
Tamworth |
Wishaw |
|
| A4092 road |
Tonyrefail |
Llangeinor |
|
| A4093 road |
Rhondda |
Llangeinor |
|
| A4094 road |
Loudwater |
Maidenhead |
|
| A4095 road |
Faringdon |
Bicester |
|
| A4097 road |
Minworth |
Kingsbury |
|
| A4098 road |
Moxley |
Wednesbury |
|
| A4099 road |
Halesowen |
Blackheath |
|
| A4100 road |
Blackheath |
Brierley Hill |
|
| A4101 road |
Kingswinford |
Dudley |
|
| A4102 road |
Amblecote |
|
English version |
| A4102 road |
Merthyr Tydfil |
Merthyr Tydfil |
Welsh version - Located in the Town Centre |
| A4103 road |
Worcester |
Hereford |
|
| A4104 road |
Little Malvern |
Pershore |
|
| A4106 road |
Bridgend |
Porthcawl |
|
| A4107 road |
Bwlch y Clawdd |
Port Talbot |
|
| A4109 road |
Aberdulais |
|
|
| A4110 road |
Leintwardine |
Hereford |
|
| A4111 road |
Willersley |
Kington |
|
| A4112 road |
Tenbury Wells |
Eardisley |
|
| A4113 road |
Ludlow |
Knighton |
|
| A4114 road |
Allesley |
Willenhall |
|
| A4115 road |
Templeton |
Cross Hands |
|
| A4117 road |
Near Bewdley |
Cleehill |
|
| A4118 road |
Dyfatty Street, Swansea |
Port Eynon |
|
| A4119 road |
Ystrad |
Cardiff Bay |
|
| A4120 road |
Llanbadarn Fawr, Aberystwyth |
Ponterwyd |
It runs parallel with the A44, but on the other side of the Rheidol Valley. |
| A4123 road |
Wolverhampton |
Birmingham |
|
| A4124 road |
Wolverhampton |
Brownhills |
|
| A4125 road |
Northwood |
Bushey |
|
| A4126 road |
Monmore Green |
Coseley |
|
| A4127 road |
Heston |
Wembley |
|
| A4128 road |
High Wycombe |
Great Missenden |
|
| A4129 road |
Princes Risborough |
Thame |
|
| A4130 road |
Burchetts Green |
Rowstock |
The section of road between Milton Hill and Rowstock was formerly part of the A34. |
| A4133 road |
Great Witley |
Droitwich Spa |
|
| A4135 road |
Tetbury |
Slimbridge |
|
| A4136 road |
Huntley |
Monmouth |
|
| A4137 road |
Marston |
St Owen's Cross |
|
| A4138 road |
Pontardulais |
Llanelli |
|
| A4139 road |
Tenby |
Pembroke Dock |
|
| A4140 road |
Wembley |
Bushey Heath |
|
| A4141 road |
Solihull |
Five Ways |
|
| A4142 road |
Heyford Hill, Oxford |
Headington |
Part of the Oxford Ring Road |
| A4143 road |
Llanfoist |
Abergavenny |
|
| A4144 road |
Pear Tree |
Redbridge Park and Ride |
|
| A4145 road |
Watford |
Rickmansworth |
|
| A4146 road |
Milton Keynes |
Hemel Hempstead |
|
| A4147 road |
Hemel Hempstead |
St Albans |
|
| A4148 road |
Bescot |
Bescot |
Walsall Ring Road |
| A4150 road |
|
|
Wolverhampton Ring Road |
| A4151 road |
Elton |
Nailbridge |
|
| A4154 road |
Amersham |
Amersham on the Hill |
|
| A4155 road |
Bourne End |
Reading |
By way of Little Marlow, Marlow, Medmenham, Henley-on-Thames, Lower Shiplake and Caversham |
| A4157 road |
Aylesbury |
Aylesbury |
|
| A4158 road |
Oxford |
Iffley |
|
| A4159 road |
Bow Street, Aberystwyth |
A44 |
Acts as a by-pass around the northern part of Aberystwyth. |
| A4160 road |
Newport Road, Cardiff |
Penarth |
|
| A4161 road |
Ely Bridge, Cardiff |
Southern Way, Cardiff |
Runs along a part of the old A48 |
| A4162 road |
Sea Mills |
Westbury-on-Trym |
|
| A4165 road |
Oxford |
Kidlington |
Banbury Road |
| A4167 road |
Birmingham |
A456 |
|
| A4168 road |
Woodsetton |
Dudley |
|
| A4169 road |
Shifnal |
Much Wenlock |
|
| A4171 road |
Cainscross |
Badbrook |
|
| A4172 road |
Preston Cross |
Trumpet |
|
| A4173 road |
Stroud |
Gloucester |
|
| A4174 road |
Bristol |
Bristol |
The Avon Ring Road |
| A4175 road |
Hicks Gate |
Soundwell |
|
| A4176 road |
Hotwells |
Black Boy Hill |
|
| A4177 road |
Meer End |
Warwick |
|
| A4178 road |
Oxhey |
Watford |
|
| A4180 road |
Yeading |
Northwood |
|
| A4182 road |
West Bromwich |
West Bromwich |
|
| A4183 road |
Abingdon |
Lodge Hill |
Oxford Road, Abingdon. This road was formerly part of the A34. The remaining part of the road between Lodge Hill and Hinksey Hill near Oxford has since been unclassified. |
| A4184 road |
Evesham |
Evesham |
|
| A4185 road |
Rowstock |
Chilton |
This road was formerly part of the A34. |
| A4189 road |
Reditch |
Warwick |
|
| A4196 road |
West Bromwich |
Wednesbury |
|
| A4200 road |
Central London (Aldwych) |
Mornington Crescent, Camden |
|
| A4201 road |
Central London (Piccadilly Circus) |
Regent's Park |
|
| A4202 road |
Hyde Park Corner |
Marble Arch |
Park Lane, part of the London Inner Ring Road |
| A4204 road |
Kensington |
Notting Hill Gate |
Kensington Church Street |
| A4205 road |
Edgware Road station |
Bishops Bridge, Paddington |
|
| A4206 road |
Notting Hill Gate |
Paddington Basin |
|
| A4207 road |
Westbourne Grove |
Westbourne Park |
|
| A4208 road |
Ludgate Circus |
Holborn Circus |
|
| A4209 road |
Edgware Road station |
Lancaster Gate |
Sussex Gardens |
| A4212 road |
Bala |
Trawsfynydd |
|
| A4214 road |
Llanelli |
Hendy |
|
| A4215 road |
Libanus |
Defynnog |
|
| A4216 road |
Sketty |
Gendros |
|
| A4217 road |
Swansea |
Llansamlet |
|
| A4218 road |
Tenby |
Tenby |
|
| A4219 road |
Scleddau |
Manorowen |
|
| A4221 road |
Neath Port Talbot |
Abercraf |
|
| A4222 road |
Cowbridge |
Talbot Green |
|
| A4224 road |
Abercynon |
Aberdare |
|
| A4225 road |
Porth |
Trehafod |
|
| A4226 road |
Bonvilston |
Cardiff Airport |
|
| A4229 road |
Pyle |
Porthcawl |
|
| A4230 road |
Skewen |
Birchgrove |
|
| A4231 road |
Biglis |
Pencoedtre] |
|
| A4232 road |
M4 Junction 30 Cardiff East |
M4 Junction 33 Cardiff West |
Cardiff Link Road (Peripheral Distribution Road) |
| A4233 road |
Tonyrefail |
Aberdare |
|
| A4234 road |
Adam Street, Cardiff |
Queensgate Roundabout, Cardiff |
Central Link Road of the Peripheral Distribution Road |
| A4240 road |
Penllergaer |
Loughor |
|
| A4241 road |
Port Talbot |
Baglan |
southern distributor road |
| A4242 road |
Carmarthen |
Carmarthen |
|
| A4243 road |
Carmarthen |
Carmarthen |
|
| A4244 road |
Brynrefail, Gwynedd |
Glasinfryn |
Reclassified from parts of B4366 and B4547 |
| A4251 road |
Kings Langley |
Near Tring |
|
| A4252 road |
West Bromwich |
Smethwick |
|
| A4254 road |
Chilvers Coton |
Horeston Grange |
|
| A4256 road |
Drayton |
Daventry Reservoir |
|
| A4259 road |
Swindon |
Wanborough |
|
| A4260 road |
Near Pear Tree |
Banbury |
|
| A4289 road |
Swindon |
Swindon |
|
| A4300 road |
Kettering |
Kettering |
|
| A4302 road |
Gloucester |
Gloucester |
|
| A4303 road |
Cross in Hand |
Junction 20 of M1 |
|
| A4304 road |
Junction 20 of M1 |
Market Harborough |
|
| A4311 road |
Swindon |
Swindon |
|
| A4312 road |
Swindon |
Swindon |
|
| A4313 road |
Swindon |
Walcot |
|
| A4135 road |
Tetbury |
Near M5 motorway |
|
| A4320 road |
Arno's Vale |
M32 Junction 3 |
|
| A4361 road |
Beckhampton |
Swindon |
|
| A4400 road |
|
|
Birmingham Inner Ring Road |
| A4440 road |
Worcester |
Worcester |
|
| A4421 road |
Bicester |
Finmere |
|
| A4440 road |
Worcester |
Worcester |
|
| A4444 road |
Bilston |
Moxley |
|
| A4500 road |
Northampton |
Wellingborough |
formerly A45 |
| A4501 road |
Northampton |
Northampton |
|
| A4508 road |
Billing |
Kingsthorpe |
|
| A4535 road |
Kidderminster |
Kidderminster |
|
| A4536 road |
Fernhill Heath |
A38 |
|
| A4538 road |
Spetchley |
Martin Hussingtree |
|
| A4540 road |
Circlar |
|
Birmingham Middle Ring Road |
| A4600 road |
M69 Junction 2 |
Coventry |
|
| A4601 road |
Cannock |
Cannock |
|
