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The numbering zones for A-roads in Great Britain

List of A roads in zone 3 in Great Britain starting west of the A3 and south of the A4 (roads beginning with 3).

Single- and double-digit roads

Road	From	To	Notes
A3 road	The Monument, London	Portsmouth	A large majority is a trunk road. Its southern parallel motorway is designated the A3(M).
A30 road	Hounslow, West London	Land's End	Replaced for 6 miles (9.7 km) between Popham and the Bullington interchange by the A303 trunk road southwest of Basingstoke. A trunk road west of Exeter.
A31 road	Guildford	Bere Regis	Near the M3 its Romsey and Winchester portion is replaced by: • the J10 to J11, M3, Winchester • The A3090 from J11 to Ower in the New Forest District — a winding route covering 11 miles (18 km) in 16 miles (26 km).
A32 road	Gosport	Alton	All in Hampshire
A33 road	Winchester	Reading	Resumes in Southampton as various roads such as the arterial road alongside Southampton Dock.
A34 road	Winchester	Salford	Most of the section between Oxford and Solihull is arguably the A44 and the A3400 however its modern course ends northeast to join the M40 from which the northern part of the road can be accessed after one junction of the M42 motorway. A trunk road to Oxford and between Stafford and Stoke on Trent.
A35 road	Southampton	Honiton
A36 road	Southampton	Bath
A37 road	Dorchester	Bristol	Broken in two past the former Roman town of Ilchester by a bypass which is a small fraction of the A303
A38 road	Bodmin	Mansfield	Replaced by J27 to J31, M5. In Birmingham a shorter parallel road into the city centre is the A38(M) motorway A dual carriageway in South Devon, Staffordshire and Derbyshire.
A39 road	Newton Park near Bath	Falmouth

Triple-digit roads

Road	From	To	Notes
A300 road	Upper Thames Street, City of London	Newington Causeway, near Elephant & Castle
A301 road	Aldwych	St George's Circus
A302 road	Hyde Park Corner, London	Elephant & Castle	In three parts. 1. The London Inner Ring Road at Grosvenor Place to the Victoria one way system. 2. Victoria Street, half of Parliament Square and then Bridge Street (Westminster Bridge). 3. St George's Road (one way (north-west)) past St George's Cathedral, Southwark).
A303 road	M3 junction 8 South of Basingstoke	Between Newcott and Rawridge
A304 road	Fulham	Fulham	The western part of the Fulham Road
A305 road	East Sheen	Twickenham
A306 road	Hammersmith	Roehampton
A307 road	Kew	Cobham
A308 road	Brompton	Maidenhead	Exists in three sections, one from Brompton to Chelsea, the second from Chelsea to north of Putney Bridge, and the third from the Robin Hood junction at Kingston Vale to Maidenhead.
A309 road	Twickenham	Hook, London	Runs in two sections, one in Twickenham and Teddington as a non primary road and a longer primary section from Hampton Court to Hook.
A310 road	Hampton Wick	Brentford	Runs from the Hampton Wick junction with the A308 at Kingston Bridge northwards via Teddington, Strawberry Hill, Twickenham and Isleworth to the junction with the A315 at Brentford.
A311 road	Hampton	Twickenham
A312 road	Hampton	Harrow	The road has been dubbed "The A three-one-queue" owing to frequent peak-hours' heavy congestion. Part of its course ran from Hatton to Harlington, London across where Heathrow Airport is instead of its present course past Cranford more directly to north-east Hayes and districts further north including Harrow. Its middle section is officially known as The Parkway^[1]
A313 road	Hampton Hill	Teddington
A314 road	Hanworth	Hounslow
A315 road	Knightsbridge	East Bedfont
A316 road	Chiswick	Start of M3 motorway (Sunbury-on-Thames)
A317 road	Hersham	Chertsey
A318 road	Chertsey	Byfleet
A319 road	Lightwater	Chertsey
A320 road	Guildford	Staines upon Thames
A321 road	Henley	York Town near Camberley	The road used to continue south of the A30 to Guildford via the following renumbered roads: B3411 (through Frimley Green), B3012 (to Pirbright), A324 (through Pirbright), B3012 (to Fox Corner), and A322 (to Guildford).
A322 road	Bracknell	Guildford
A323 road	Hartley Wintney	Guildford
A324 road	Woking	Normandy
A325 road	Bagshot	Greatham
A326 road	Totton	Fawley
A327 road	Reading	Farnborough
A328 road	Old Windsor	Englefield Green
A329 road	Wentworth, Virginia Water	Thame
A330 road	Maidenhead	Sunningdale
A331 road	Camberley	Runfold	A331 was previously used for the road from Windsor to Ditton Park (now B470 and Ditton Road).
A332 road	Bagshot	Slough
A333 road	Hazel Grove (A3 Junction) near Grayshott	Hindhead	Renumbered when the Hindhead Tunnel opened in July 2011 having been formerly part of the A3. A333 was previously used for the road from Winchester to Cosham until 1994 when it was downgraded to B2177.
A334 road	Wickham	Southampton
A335 road	Southampton	Near Eastleigh
A336 road	Cadnam	Totton
A337 road	Near Cadnam	Christchurch
A338 road	Bournemouth	Besselsleigh
A339 road	Alton	Newbury
A340 road	Basingstoke	Pangbourne
A341 road	Merley, (Poole)	Red Hill Roundabout, Red Hill, Bournemouth
A342 road	Chippenham	Andover
A343 road	Newbury	Lopcombe Corner, Winterslow
A344 road	Stonehenge, Durrington	A360, Winterbourne Stoke	Previously linked the A303 and the A360 at Stonehenge. Part of the road is now an unclassified access road for Stonehenge; the section nearest the A303 has been dug up and no longer exists.
A345 road	Marlborough	Salisbury
A346 road	Ludgershall	Swindon
A347 road	Ferndown	Bournemouth
A348 road	Trickett's Cross	Poole
A349 road	A31, Wimborne	Poole
A350 road	Poole	M4 motorway Junction 17, north of Chippenham
A351 road	Lytchett Minster bypass	Swanage
A352 road	Wareham bypass	Sherborne
A353 road	Weymouth	Warmwell
A354 road	Salisbury	Isle of Portland
A355 road	Amersham	Windsor
A356 road	Bower Hinton	Grimstone
A357 road	A371, near Wincanton	Blandford Forum
A358 road	Williton	east of Colyford	Route passes through Taunton and Chard in Somerset.
A359 road	Yeovil	Nunney
A360 road	Devizes	Salisbury
A361 road	Ilfracombe	Kilsby	Becomes the A4361 between Beckhampton and Swindon. At 195 miles (314 km) is the longest 3 digit A road in the UK. Before the North Devon link road (which was to be B364 before the rerouting) opened, it went northeast via what is now the B3277.
A362 road	Warminster	Farrington Gurney
A363 road	Bathford	Yarnbrook	Originally went south to Warminster.
A364	Unused		Previously a road between Yarnbrook and Chippenham. Now part of the A350. It was also proposed for the North Devon link road between Barnstaple and Bampton, but it was rerouted and opened as part of the A361 instead.
A365 road	Box	Seend Fork, Sells Green, Seend	A short road split near its midpoint by Melksham and its bypass
A366 road	Trowbridge	Ammerdown crossroads (near Radstock)
A367 road	Bath	Shepton Mallet
A368 road	Marksbury	Churchill, Somerset
A369 road	Portishead	Bristol
A370 road	Bristol	Near Brent Knoll
A371 road	Wincanton	Weston-super-Mare
A372 road	Podimore, Yeovilton	Bridgwater
A373 road	Honiton	Cullompton
A374 road	Marsh Mills, Plymouth	Trerulefoot	Runs through Union Street, Plymouth
A375 road	Honiton	Sidmouth
A376 road	Exeter	Exmouth
A377 road	Exeter	Barnstaple
A378 road	Langport	Taunton
A379 road	Kennford	Plymouth
A380 road	Kennford	Torbay	Bypasses Kingskerswell on new South Devon Highway
A381 road	Teignmouth	Salcombe
A382 road	Newton Abbot	East of Okehampton
A383 road	Newton Abbot	Bickington
A384 road	Dartington	Buckfastleigh	Originally Totnes to near Launceston via Two Bridges
A385 road	Paignton	South Brent bypass
A386 road	Plymouth	Appledore
A387 road	Polbathic	Polperro
A388 road	Saltash bypass	Landcross
A389 road	Padstow	Lanivet
A390 road	Tavistock	Truro
A391 road	St Austell	Lanivet
A392 road	St. Columb Road	Newquay
A393 road	Redruth	Penryn bypass.
A394 road	Treliever Cross, Penryn	Longrock, Ludgvan
A395 road	Trewassa^{[n 1]}	Tregadillett^{[n 2]}
A396 road	Dunster	Cowley
A397 road	Portsmouth	Portsmouth	Previously a road between Halberton and Uffculme (now A361 (former A373 Spur)).
A398	Unused		Previously a road between Taunton and South Molton (now B3277 (former A361).
A399 road	South Molton bypass	Ilfracombe

Four-digit roads (30xx)

Road	From	To	Notes
A3000 road	Turnham Green	Chiswick
A3001 road	Unused		Ran from Ealing to Brentford (now B455).
A3002 road	Brentford	Hanwell
A3003 road	Mortlake	Barnes
A3004 road	Isleworth	St Margarets
A3005 road	Southall	Hounslow
A3006 road	Henleys Corner, Hounslow	Hounslow
A3007 road	Richmond	Richmond
A3008 road	Hampton	Hampton
A3009 road	Esher	Esher
A3010 road	Basingstoke	Basingstoke
A3011 road	Farnborough	A331	Section east of A331 now B3166.
A3012	Unused		Ran from A3011 TO A321 in Farnborough (now B3165).
A3013 road	Farnborough	Fleet
A3015 road	Sowton	Exeter
A3016 road	Hale	Hog Hatch
A3020 road	Cowes	Shanklin
A3021 road	East Cowes	Newport
A3022 road	A380, Kingskerswell	Brixham, Torbay
A3023 road	Near Havant	Hayling Island
A3024 road	Southampton	Hedge End
A3025 road	Southampton	Netley
A3026 road	Ludgershall	North Tidworth
A3027 road	Staplegrove	Taunton
A3028 road	Durrington	A303 via Bulford
A3029 road	Bedminster	Hotwells
A3030 road	Sherborne	Lydlinch
A3031 road	Chelsea Embankment	Battersea Park
A3032 road	Hare Hatch	Charvil
A3033 road	Weston-super-Mare	Uphill
A3035 road	Southampton	Southampton Common
A3036 road	County Hall, London	Wandsworth	See also: Albert Embankment
A3038 road	North Town, Taunton	Rowbarton, Taunton
A3039 road	Bath	Bath
A3040 road	Branksome	Wallisdown
A3044 road	Staines upon Thames	Colnbrook
A3046 road	Woking	Chobham
A3047 road	Scorrier	Camborne
A3049 road	Fleetsbridge	Boscombe
A3050 road	Weybridge	Hampton Court
A3051 road	Botley	Locks Heath
A3052 road	Charmouth	Clyst St Mary
A3054 road	Ryde	Totland	Northern part of Isle of Wight circular A-Class loop
A3055 road	Ryde	Totland	Southern part of Isle of Wight circular A-Class loop
A3056 road	Newport	Sandown
A3057 road	Southampton	Andover
A3058 road	Mellanvrane	St Austell
A3059 road	St Columb Minor	St Columb Major
A3060 road	Red Hill Roundabout, Bournemouth	Iford, Dorset, Bournemouth
A3062 road	Odd Down	Widcombe
A3063 road	Heston	Hanworth Road, Whitton
A3064 road	Milehouse	Weston Mill
A3065 road	Staplegrove	Bishop's Hull	Known as "Silk Mills Road"
A3066 road	Haselbury Plucknett	Bridport
A3069 road	Lymington	Lyndhurst
A3070	Unused		Formerly connected A35 south-east of Axminster with Lyme Regis via Uplyme; now downgraded as southernmost section of B3165.
A3071 road	Penzance	St Just in Penwith
A3072 road	Bickleigh	Bude
A3073 road	Stratton, Cornwall	Bude
A3074 road	Lelant	St Ives
A3075 road	Trevemper, Newquay	Chiverton Cross, Blackwater
A3076 road	Mitchell	Gunmows Shop, St Newlyn East
A3078 road	Probus	St Mawes
A3079 road	Okehampton	Holsworthy
A3082 road	St Blazey	Fowey
A3083 road	Helston	Lizard
A3088 road	Yeovil	Stoke sub Hamdon
A3090 road	Near Winchester	Near Totton	Mostly formerly part of the A31
A3093 road	Andover	Andover
A3094 road	Harnham	Quidhampton	Forms a southern ring-road around Salisbury
A3095 road	Sandhurst	Bracknell
A3098 road	Frome	Westbury

Four-digit roads (31xx and higher)

Road	From	To	Notes
A3100 road	Burpham	Milford	Formerly the A3
A3102 road	Swindon	Royal Wootton Bassett, Calne, Melksham
A3110 road	Parting Carn, St Mary's	Maypole	Circular road on St Mary's island
A3111 road	The Quay, Hugh Town, St Mary's	Parting Carn	The most westerly classified road in England
A3112 road	The Parade, Hugh Town, St Mary's	Parting Carn/St Mary's Airport	The most southerly classified road in the United Kingdom
A3113 road	M25 motorway Junction 14	Heathrow Airport
A3121 road	Wrangaton	Ermington	Formerly B3211
A3122 road	Halwell	Dartmouth	Formerly part of B3207
A3123 road	Combe Martin	Ilfracombe	Formerly part of B3343
A3124 road	Whiddon Down, Drewsteignton	Great Torrington	Formerly part of B3220 and unclassified roads
A3125 road	Barnstaple	Barnstaple	Formerly part of A39
A3126 road	Tiverton	Tiverton	Formerly part of A396
A3200 road	London Bridge	County Hall	Southwark Street/Stamford Street/York Road
A3201 road	A300 Southwark Bridge Road	The Borough	Marshalsea Road
A3202 road	Lambeth North station	The Borough
A3203 road	Lambeth Bridge	St George's Circus
A3204 road	Elephant & Castle	Vauxhall Cross	Kennington Lane, part of the London Inner Ring Road
A3205 road	Vauxhall	Battersea	In the London Borough of Lambeth: Nine Elms Lane; in the London Borough of Wandsworth: Nine Elms Lane, Battersea Park Road
A3207 road	York Road, Battersea	Lavender Hill, Battersea	Falcon Road
A3209 road	Wandsworth	Putney Bridge
A3210 road	A240 in Surbiton	A243 in Surbiton	Short link road
A3211 road	Westminster	Tower of London
A3212 road	Trafalgar Square	Chelsea	Whitehall, then Millbank and following the north of the Thames along the Chelsea Embankment to Battersea Bridge. The Houses Of Parliament are on this road.
A3213 road	Pimlico	Eaton Square
A3214 road	Buckingham Palace	Royal Hospital Chelsea
A3216 road	Knightsbridge	Clapham Common	In the City of Westminster: Sloane Street, Sloane Square, Chelsea Bridge Road, Chelsea Bridge; in the London Borough of Wandsworth: Chelsea Bridge, Queenstown Road (including Queen's Circus); in the London Borough of Lambeth: Queenstown Road, Cedars Road
A3217 road	Victoria	Chelsea
A3218 road	South Kensington	Fulham	Old Brompton Road, Lillie Road
A3219 road	Fulham	Fulham	Dawes Road
A3220 road	Clapham Common	White City
A3259 road	Staplegrove	Monkton Heathfield	Formerly part of A361
A3290 road	Winnersh	Reading	Previously the northern section of the A329(M)
A3400 road	Hockley Heath	Near Chipping Norton	Formerly part of A34
A3604 road	Bath	Bath
A3807 road	A38 in Taunton	A3027 in Taunton