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).
[edit] Single- and double-digit roads
[edit] Triple-digit roads
| Road | From | To | Notes |
 A300 road | Upper Thames Street, City of London | Newington Causeway, near Elephant & Castle | |
 A301 road | Aldwych, Central London | St George's Circus | |
 A302 road | Hyde Park Corner, Central London | County Hall | |
 A303 road | M3 junction 8 South of Basingstoke | Honiton | |
 A304 road | Fulham | Fulham | The western part of the Fulham Road |
 A305 road | East Sheen | Twickenham | |
 A306 road | Hammersmith | Roehampton | |
 A307 road | Kingston upon Thames | Cobham | |
 A308 road | Brompton | Maidenhead | |
 A309 road | Twickenham | Hook | |
 A310 road | Kingston upon Thames | Brentford | |
 A311 road | Hampton | Twickenham | |
 A312 road | Hampton | Harrow | |
 A313 road | Hampton Hill | Teddington | |
 A314 road | Hanworth | Hounslow | |
 A315 road | Knightsbridge | Hounslow | |
 A316 road | Chiswick | Start of M3 motorway | |
 A317 road | Hersham | Chertsey | |
 A318 road | Chertsey | Byfleet | |
 A319 road | Lightwater | Chertsey | |
 A320 road | Guildford | Staines | |
 A321 road | Henley | Ash |
 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 | Egham | |
 A329 road | Wentworth | Thame | |
 A330 road | Maidenhead | Sunningdale | |
 A331 road | Camberley | Runfold | |
 A332 road | Bagshot | Slough | |
| A333 | Unused | | Previously a road between Winchester and near Portsmouth |
 A334 road | Wickham | Southampton | |
 A335 road | Southampton | Near Eastleigh | |
 A336 road | Cadnam | Totton | |
 A337 road | Near Cadnam | Christchurch | |
 A338 road | Bournemouth | Bessels Leigh | |
 A339 road | Alton | Newbury | |
 A340 road | Basingstoke | Pangbourne | |
 A341 road | Merley, Poole | Northbourne, Bournemouth | |
 A342 road | Chippenham | Andover | |
 A343 road | Newbury | Lopcombe Corner | |
 A344 road | Stonehenge | A360 | |
 A345 road | Marlborough | Salisbury | |
 A346 road | Ludgershall | Swindon | |
 A347 road | Ferndown | Bournemouth | |
 A348 road | Trickett's Cross | Poole | |
 A349 road | A31 at Wimborne | Poole | |
 A350 road | Poole | M4 motorway | |
 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 | |
 A359 road | Yeovil | Nunney | |
 A360 road | Devizes | Salisbury | |
 A361 road | Ilfracombe | Kilsby | |
 A362 road | Warminster | Farrington Gurney | |
 A363 road | Bathford | Yarnbrook | |
| A364 | Unused | | Previously a road between Warminster and Chippenham. |
 A365 road | Box | Sells Green | |
 A366 road | Trowbridge | 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 | 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 | Kenford | Plymouth | |
 A380 road | Bickham House | Torbay | |
 A381 road | Teignmouth | Salcombe | |
 A382 road | Newton Abbot | Whiddon Down | |
 A383 road | Newton Abbot | Goodstone | |
 A384 road | Shinner's Bridge | 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 | Longrock | Penryn bypass | |
 A395 road | Trewassa | Tregadillett | |
 A396 road | Dunster | Cowley | |
 A397 road | Portsmouth | Portsmouth | |
| A398 | Unused | | Previously a road between Taunton and South Molton. |
 A399 road | South Molton bypass | Ilfracombe | |
[edit] Four-digit roads (30xx)
| Road | From | To | Notes |
 A3000 road | Turnham Green | Chiswick | |
 A3001 road | Ealing | Brentford | |
 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 | |
 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 | Bulford Camp | Durrington | |
 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, Central London | Wandsworth | See also: Albert Embankment |
 A3038 road | North Town | Rowbarton | |
 A3039 road | Bath | Bath | |
 A3040 road | Branksome | Wallisdown | |
 A3041 road | Wallisdown | Branksome | |
 A3044 road | Staines | Colnbrook | |
 A3046 road | Woking | Chobham | |
 A3047 road | Scorrier | Camborne | |
 A3049 road | Fleetsbridge | Boscombe | |
 A3050 road | Frome | Westbury | |
 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 | Moordown, Bournemouth | Iford, Bournemouth | |
 A3062 road | Odd Down | Widcombe | |
 A3063 road | Heston | The Warren | |
 A3064 road | Milehouse | Weston Mill | |
 A3065 road | Staplegrove | Ramwell | |
 A3066 road | Haselbury Plucknett | Bridport | |
 A3069 road | Lymington | Lyndhurst | |
 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 | |
 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 | |
[edit] Four-digit roads (31xx and higher)
