Possible number for the former A692 west of Gateshead. The eastern end is now part of the A184, but it is not known if the B601 was decommissioned as well. Some maps and all signs state the route as part of the B1426, however other maps, as well as Gateshead MBC, still state the route as B601.
B602
unused
B603 (defunct)
Briefly proposed in early 2013 for the section of the A6033 between Hebden Bridge and Haworth, returned to the A6033 designation.
First used at Irthlingborough, cutting the corner between the A6 and B663. It was upgraded to Class I status early on and had become part of the A605 by the 1950s (probably had this number by the end of the 1920s). But following the construction of the current A45, the road was torn up and is now completely gone, nothing more than a faint line in a field.
The second use was from the A43 north of Stanion to the A427 in Corby. Upgraded to Class I status as the A6116 in 1935; the section east of Corby is now part of the A6086 and the remainder unclassified.
B665 (defunct)
A604 in Thrapston
B663 near Raunds
Upgraded to a portion of the A605 before 1930. Later bypassed by the current A45; much of route now unclassified, except for a small section in Raunds which is now part of the B663.
B666 (defunct)
B663 in Raunds
B665 in Ringstead
Became a spur of the B663 by the 1950s, but was likely renumbered before then.
Nottingham western bypass; the southern section became part of the A453 (now A6005) around 1935 while the remainder held on through the 1960s before it too was upgraded to Class I status, and is now the A6130.
The southern section between the A46 and A612 was upgraded to Class I status early on, becoming the A6097, although much of this section returned to the B688 after the East Bridgford bypass and a new Gunthorpe Bridge (opened 1927) were built (the new road got the A6097 number). With the old bridge gone, this left the B688 with a gap over the River Trent, requiring a detour via local roads and the A6097. Later maps showed that the A6097 had replaced the B688 piece by piece. A section in Oxton was numbered as part of the B6386, but this is now unclassified.
B689 (defunct)
A1 (now B6326) in Newark-on-Trent
A46 in Newark-on-Trent
Was the highest-numbered and northernmost 3-digit road B road in England. Upgraded to Class I status, either as a spur of the A46 or an out-of-zone extension of the A17. Now part of the B6166 after Newark was bypassed by the A1 and A46.
Originally the A6009 before it was downgraded in 1971. Became a northern extension of the B6034 after the A57 Worksop bypass was built; the bypassed section as well as the section north of the A57 are now unclassified.
Originally numbered B6043, it was upgraded to the A623 in the 1930s including the formerly private road through Chatsworth Park. It gained its present number in the 1970s.
This was rerouted twice and became the A6075 with the western section later becoming part of the A617 in 2004. There may have been a later B6029 in Newark but this is unconfirmed.
Ran along Leppings Lane; renumbered as a portion of the B6079. The section north of the B6079 is now part of the A6102 while the southernmost section (which never had the B6078 number) is now an unclassified one-way street.
Originally began at the A658 in Undercliffe and ran clockwise to the A641 in Wibsey, forming a northeast to south bypass. Extended to a full circle after WWII with two spurs marking the original ends: a short one along Killinghall Road to the A658 and a longer one from Chain Bar to Odsal Top, bypassing the original route to Wibsey. The entire original section, including the Odsal Top spur, became an extension of the A6036 in the 1960s, leaving the 1940s extension as the B6148. Around then the eastern section (between the A647 and B6145) was rerouted along Horton Grange Road and Ingleby Road. Soon after the entire B6148 was renumbered to A6177, and this took over the entire ring to form a full circle. The Odsal Top spur remains the A6036.
Originally ran from Knaresborough to Boroughbridge. Shortened slightly in the 1960s after the A1 Boroughbridge Bypass was built; the remainder was upgraded to Class I status as the A6055 around 1972. The entire original section north of Minskip is now unclassified after the A1 was upgraded to motorway status (this moved the A1(M)/A6055 junction further south).
Originally ran in Stockport, likely along Prince's Street linking the A6 to the A626. Renumbered to a portion of the B5423 in 1935. Now downgraded and mostly pedestrianized, although a small section still has Class II status.
Split in two by the A6042 and decommissioned; the section south of New Bridge Street is now part of the B6182 and the section just west of the A6042 is now gone, taken over by a car dealership.
B6184
A560 Wood Street, Stockport
A5102 Bramhall Way, Stockport
Created 2019; has a zone 6 number, despite existing west of the A6. One section former B5465.
B6185 (defunct)
A5066/B6184 Blackfriars Road, Salford
A56 Great Ducie Street, Salford
St Simon Street, now unclassified; much of route gone after the River Irwell was rerouted.
Originally ran from Rochdale to Shaw. Renumbered as a northern extension of the B6194 in 1935; the eastern end is now unclassified due to rerouting of the A663.
Formerly A57 until the construction of new A57 link road onto the Sheffield Parkway.
Originally ran along Hutton Lane in Bolton, connecting the A58 to the A579. Upgraded to Class I status as the A6145, probably due to construction of the M61.
Originally ran along King Street in Accrington, between the A679 and A680. Due to road improvement, much of the route is now unclassified, although the eastern section is part of the A679.
Originally ran along Deepdale Road from Preston to Fulwood. Renumbered to a portion of the A6063 in the 1980s; the northern section is part of the current B6241.
Originally began in Scotch Corner and ended at Reeth. The section from Scotch Corner to Downholme was upgraded to a portion of the A6108 in the late 1920s and the extension to Nateby did not happen until 1935.
Originally ran from Scorton to Plantation House. Put out of zone when the A1 was rerouted via Scotch Corner instead of Northallerton in 1924 (old route became an extension of the A167) and was renumbered to B1263 as a result.
Originally ran from Bishop Auckland to South Church. Renumbered as a northern extension of the A6072; the section north of the A688 Bishop Auckland bypass is now the A689 and the southern portion is now the B6282.
Originally ran in Spennymoor from the B6288 Coulson Street to the A6074 Durham Road. Now part of the B6288 due to construction of the A688 Spennymoor bypass.
Includes the Military Road, which runs alongside Hadrian's Wall, some of which was demolished in the 18th century to provide material for the road. At 61.4 miles (98.8 km), it is the longest B Road in Mainland Britain.
Declassified; the section just south of Scotswood Road is now pedestrianized.
B6331 (defunct)
A69 (now A186) Westgate Road, Newcastle-upon-Tyne
A695 Scotswood Road, Newcastle-upon-Tyne
Declassified due to redevelopment; portions of the route are also gone.
B6332 (defunct)
A69 (now A186) Westgate Road, Newcastle-upon-Tyne
A6082 Redheugh Bridge Road, Newcastle-upon-Tyne
Later renumbered as a portion of the B1600, but now mostly unclassified. South of Westmorland Road is broken up by the college campus built on top and Railway Street is now part of the A695.
B6333 (defunct)
A6082 Railway Street, Newcastle-upon-Tyne
A695 Neville Street & A69 Westgate Road (both now A186), Newcastle-upon-Tyne
Much of route now unclassified; the western section is now part of the B1600 and Orchard Street is now just a queue for station taxis.
B6334 (defunct)
B6333 Forth Street, Newcastle-upon-Tyne
A184 at the northern end of the Swing Bridge, Newcastle-upon-Tyne
Section east of the A69 later declassified, Clayton Street West now part of the A695 and the remainder unclassified.
B6336 (defunct)
A69 (now A186) Westgate Road, Newcastle-upon-Tyne
A696 (now A189) Gallowgate, Newcastle-upon-Tyne
Rerouted along Corporation Street (original route now gone, lost under the now-demolished Tyne Brewery). Corporation Street is now part of the B1311 and the eastern end is now part of the A189. Except for the western end of Buckingham Street, the original B6336 is gone.
B6337 (defunct)
A696 (now A189) Barrack Road, Newcastle-upon-Tyne
A69 (now A186) Westgate Road, Newcastle-upon-Tyne
Declassified; the route has been split in two by the new A189. The southern end is now closed to traffic and the central section is now a shared space with the redevelopment of the Tyne Brewery site.
B6338 (defunct)
A1 (now B1318) near the Hancock Museum, Newcastle-upon-Tyne
B6339 Grandstand Road, Newcastle-upon-Tyne
Declassified when it was bypassed by the A167; the eastern end is now a spur of the B1318 and the western end merges into a slip road leading to the A189.
B6339 (defunct)
A696 (now A189) Ponteland Road, Fenham
A1 (now B1318) Great North Road, West Jesmond
Renumbered as a western extension of the A189.
B6340
B6398 in Newtown St Boswells
A68 north of Newtown St Boswells
Former routing of the A68 through Newtown St Boswells; the northern section is an old routing of the A6091.
Originally ran from Kenton Bar to Gosforth; now part of an extended A191.
Originally ran from Elginhaugh to Portobello and is the highest numbered road in Zone 6 in the 1922 Road Lists. Upgraded to the A6106 early on, probably by 1925. The northernmost section is now part of the A199 and the southernmost section is now unclassified.
Newly defined in the 2010s, runs from A61/A621 junction near Sheffield city centre outwards to the south-eastern suburbs, consisting of (in order from the city centre) Myrtle Road, Prospect Road, Spencer Road, Richards Road, Gleadless Road, White Lane, High Lane and Quarry Hill. White Lane carries Sheffield Supertram tracks between Gleadless Townend and its junction with Fox Lane.
Originally continued north and west to the A6; much of this became the A6030 in the 1960s and was then declassified (except for a short section) in the 2000s when the A6030 was rerouted to reach the A563.
Originally followed Grosvenor Street in Ripley, only shown on a late 1930s map. Became a portion of the A610 by the 1950s, and is now part of the B6441/B6179 one-way system.
The section along Newcastle Street is now part of the B6024 and the remainder unclassified.
B6425
B6039 in Temple Normanton
A632 at Arkwright Town
Originally ran along Stockingstone Road on the north side of Luton, connecting the A6 to the A601. Upgraded to the A5228 between 1960 and 1975.
B6426
A1001/A1057 (The Comet Roundabout), Hatfield
A1000 Great North Road, Hatfield
Former portion of the A414.
Originally ran from the A414 (now A1057) at St Albans to the A1 at Water End. The A1(M) split off the eastern end in the 1970s with the section between Colney Heath and Water End becoming the B197; the entire route is now the C174.
B6429
Cullingworth
Bingley
Road in West Yorkshire that leaves at A629 at Cullingworth Moor before heading east through Cullingworth, Harden and then into Bingley town where it has a junction with the B6265. It crosses the River Aire immediately west of Bingley by the means of Ireland Bridge
Originally ran in Kendal from Stramongate Bridge to Nether Bridge. Became a portion of an extended A65 in the 1950s.
B6439
unused
B6440 (defunct)
A6086 Grainger Street, Newcastle-upon-Tyne
A696 New Bridge Street, Newcastle-upon-Tyne
Originally numbered B1306, it became the B6440 when the A1 was rerouted over the new Tyne Bridge, putting the route in Zone 6. Now unclassified due to redevelopment; the eastern end is now gone, lost under the A167(M).
Whitworth Street West, Whitworth Street and Fairfield Street
B6473
A56 Bury New Road, Whitefield
A665 in Whitefield
Former portion of the A668.
Originally ran from High Cross to Oxton, acting as an eastern bypass of Lauder for A697 traffic. Renumbered as a spur of the A697 in the 1940s.
B6475
A638 in Lupset, Wakefield
A636 in Thornes, Wakefield
Also ran along Park Road in Oldham in the 1970s. Now unclassified.
B6476 (reserved)
Listed in the DfT Road List as "Reserved for Wakefield Outer Ring Road".
B6477
A62/A627 (Manchester Street Roundabout) in Oldham
A62/A669 in Oldham
Former portion of the A62. One section along High Street is now pedestrianized and the remainder gone, with the Magistrates' Court and Town Square Shopping Center built on top.
Listed in the DfT Road lists as running from Old Felton to West Moor via Felton. This was the former routing of the A1 through Felton, but no evidence has been found that the road had the B6523 number. The number was actually used for the short section connecting the two sections of the B6345, and the remainder declassified.
Main east-west road through Skipton; originally the A59 to the west and A65 to the east. Likely short-lived (or never existed) and is now part of the A6069.
Formerly part of the A601(M) until 2020. (Some maps still show this as A601(M).) Initially thought to have been a spur of the B6254, signs posted in 2021 show the B6601 number. The B6601 is the first B-road to have motorway restrictions and also have been an ex-motorway.
For a short period in the 1980s/early 1990s, the B6670 was the route of the former A46 through Syston; this has now been declassified, except for the northern end which is part of the A46/A607 grade-separated junction.
