logoSignal box prefix codes

A (hopefully) comprehensive listing

'Boxes beginning B

Last update 2 June 2019

Additional information is always gratefully received, whether entirely new records (particularly historical records), or information to fill in gaps or correct errors, via the contact link under the Miscellaneous entry in the navigation bar above.  Thank you.

Please select a starting letter from the links below:

Introduction | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Non-National Rail | Ireland | Western region MAS dates | Mechanical signalling bell codes

Code Signal Box Note ELR Mileage Opened Closed Control to
B Babworth   ECM1 139m 13ch 16 May 1892 24 April 1976 Retford (RD)?
B Backworth   BNE c2m 0ch 16 November 1958   Newsham South (N)
D Down line automatic signals
U Up line automatic signals
BM Badminton Code used from late-1960s SWB 99m 77ch 1 January 1903 8 May 1971 Bristol (B)
DB Down Badminton line automatic signals
BL Baglan Loop   SWM2 205m 0ch 1912 28 March 1965 Port Talbot (PT)
BF Baguley Fold Junction   MVL1 2m 39ch 1890    
B Balby Junction   ECM1 155m 11ch August 1878 9 July 1978 Decoy No 1 (DY)
BA
CJ Balcombe   VTB3 33m 68ch 1864 6 October 1963 Balcombe Tunnel Junction (CK)
CK Balcombe Tunnel Junction   VTB3 31m 58ch 1909 22 October 1978 Three Bridges (CL)
BT Balderton   ECM1 116m 71ch 8 August 1872 9 July 1977 Doncaster (D)
B Baldock   SBR 35m 50ch 17 July 1892 22 November 1975 Hitchin (HT)
DC Balham   VTB1 4m 77ch 12 October 1952 7 June 1981 Victoria Signalling Centre (VC)
BH Balloch Code used from opening BCH 20m 42ch 4 April 1960 24 April 1988 Yoker (YD)
B Balne Downgraded to gate box 22 March 1970: up line controlled by Shaftholme (SH), down line controlled by Brayton (BN) (later Doncaster (D)) ECM2 165m 70ch 1957 25 April 2015 Doncaster (D)
BB Bamber Bridge Gate box: line controlled by Preston (PN); believed code not carried FHR4 2m 33ch 1906    
B Banavie Code not carried MLG2 0m 26ch 14 June 1987    
AG Arisaig points indicators.  Code not carried
AN Annat points indicators.  Code not carried
AL Ardlui points indicators.  Code not carried
AR Arrochar And Tarbet points indicators.  Code not carried
BO Bridge Of Orchy points indicators.  Code not carried
CL Crianlarich points indicators.  Code not carried
CO Connel Ferry points indicators.  Code not carried
CR Corrour points indicators.  Code not carried
DM Dalmally points indicators.  Code not carried
FL Fillan points indicators.  Code not carried (no points present)
GD Glen Douglas points indicators.  Code not carried
GF Glenfinnan points indicators.  Code not carried
GH Garelochhead points indicators.  Code not carried
GT Gorton points indicators.  Code not carried
LC Lower Crianlarich points indicators.  Code not carried
LE Loch Eil Outward Bound notices.  Code not carried
MG Mallaig points indicators.  Code not carried
OB Oban points indicators.  Code not carried
RB Roy Bridge notices.  Code not carried
RN Rannoch points indicators.  Code not carried
SP Spean Bridge points indicators.  Code not carried
TL Tyndrum Lower notices.  Code not carried
TL Tulloch points indicators.  Code not carried
TY Taynuilt points indicators.  Code not carried
UT Upper Tyndrum points indicators.  Code not carried
BD Banbury Depot   DCL   8 August 2016    
BN Banbury North   DCL 86m 26ch October 1899 8 August 2016 West Midlands Signalling Centre (OL)
RS Banbury Reservoir Sidings Code allocated to points only, not carried on signals DCL   8 August 2016    
BS Banbury South   DCL 86m 2ch September 1908 8 August 2016 West Midlands Signalling Centre (NA/OL)
DM Down main line automatic signals
UM Up main line automatic signals
BR Bangor   CNH3 239m 2ch 1923    
B Bank   DRN c1m 43ch 11 July 1898 12 July 1993 Waterloo [Waterloo & City] [new] (WK)
A Automatic signals
PB Barassie Local Signalling Panel See Paisley Barassie interlocking AYR4 33m 3ch 29 November 1982 25 May 1986 Paisley [new] (PB) (local control still possible)
B Code used to 25 May 1986
B Barassie South Junction   AYR4 33m 5ch 1891 29 November 1982 Barassie Local Signalling Panel (B)
  Barcroft Gate box: line controlled by Doncaster (D) ECM2 162m 15ch   11 April 2015 Doncaster (D)
BH Bardon Hill (also had draw-ahead signals in Bagworth colliery lettered A to E with no number)  KSL 111m 24ch 1899    
BM Bardon Mill Out of use 29 June 2002 to 29 July 2002 NEC2 32m 41ch 1874    
BL Bare Lane   MSM 0m 57ch 1937 9 December 2012 Preston (PN)
BD Bargoed 'Box relocated from Cymmer CAR 18m 7ch 9 November 1970 6 September 2013 South Wales Control Centre (CF)
B Code carried on 'box, unclear if carried on signals
BK Barking   FSS2 7m 42ch 20 March 1961 (some sources state 3 July 1961) 17 April 1995 Upminster [new] (UR)
D Down line automatic signals
DM Down main line automatic signals
DG Down goods line automatic signals TAH4 13m 62ch
U Up line automatic signals
BE Barking East Built on foundations of 1908 'box (burnt down) FSS2 7m 62ch 1919 20 March 1961 Barking (BK)
BS Barking Station   FSS2       Barking (BK)?
BW Barking West   FSS2 7m 35ch   20 March 1961 Barking (BK)
BE Barkston East Junction   ABE2 0m 39ch 13 March 1882 3 October 2005 Allington (AL)
BS Barkston South Junction   ECM1 109m 56ch 21 May 1876 29 April 1972 Grantham (G)
D Down line automatic signals
  Barlaston   CMD2 24m 48ch 4 May 1985 18 May 2002 (last train);
25 May 2002 (official)
Stoke on Trent Signalling Centre (SOT)
B Barlby Downgraded to gate box 2 October 1972: line controlled by Selby Panel (S) HUL1 30m 34ch 1898    
BN Barlby North Code used from 11 June 1967 HUL1     22 October 1972 Selby Panel (S)
D Down line automatic signals
  Barming   SBJ 37m 43ch 1874 24 April 1982 Maidstone East (EBX)
B Barnby Replaced by structure on opposite side of line ECM1 119m 3ch 10 November 1871 9 July 1977 Barnby [new] (BY)
BY Code used by early 1977
BY Barnby [new] Downgraded to gate box 2 February 1980: line controlled by Doncaster (D) ECM1 119m 3ch 11 July 1977 17 August 1997 Claypole (CL)
  Barnby Moor & Sutton   ECM1 141m 53ch 1901 18 October 1975 Ranskill (RL)
WBO Barnes   HOU 7m 25ch 22 February 1959 4 January 1997 Wimbledon (W)
BE Barnetby East   MAC3 94m 64ch 1914 30 December 2015 York Rail Operating Centre (BC)
BH Barnham   TBH2 22m 35ch 18 July 1911 11 November 2008
(delayed from 6 May 2008)
Barnham [new] (BH)
CBY Original code
BH Barnham [new]   TBH2 22m 46ch 11 November 2008
(delayed from 6 May 2008)
   
BH Barnhill Code used from 2002 SCM5 19m 69ch c1874    
BY Barnsley   PED2 6m 59ch 13 April 1998    
  Barnsley Exchange Junction See Barnsley Station Junction
BJ Barnsley Junction   MAC2 29m 3ch 1887 2 January 1981 Line closed
DJ Code shown in 1970s weekly notice in error
BY Barnsley Station Junction Named Barnsley Exchange Junction to 25 September 1972 BAH2 52m 58ch 1901 10 April 1998 Barnsley (BY)
BSJ Unclear if code carried
BD Barrhead   GBK 6m 70ch 1894    
BR Barrhill Code used from 2002 STR2 12m 35ch 1935    
BF Barrow in Furness Code used from 2008 CBC1 29m 5ch 1907    
BR Barrow Road Downgraded to gate box 24 June 1981: line controlled by Oxmarsh Crossing (OX) BAR 106m 55ch 1885    
B Barry   BRY 8m 7ch 3 August 1896 30 June 2014 South Wales Control Centre (CF)
DB Down Barry line automatic signals
UB Up Barry line automatic signals
B Barry Island   BRY 8m 63ch 5 May 1929 16 March 1998 Barry (B)
  Barry West Downgraded to gate box 30 July 1995: line controlled by Carnoustie (CA) ECN3 8m 60ch 1908 9 February 1997 Carnoustie (CA)
BH Barton Hill   YMS 11m 49ch 1936    
BM Barton Moss Burnt down 19 September 1990 DSE 25m 50ch April 1915 6 October 1990 Eccles (E)
  Barton Road Level Crossing See Thornton Abbey
  Baschurch   WSJ2 179m 14ch 1884 28 March 1999 Crewe Junction [Shrewsbury] (CJ)
BH Basford Hall Junction   LEC4 156m 22ch 1897    
  Basingstoke [Great Western] See Basingstoke 'C'          
YW Basingstoke 'A' Named Basingstoke East to 27 May 1956 BML1 47m 46ch 27 May 1906 20 November 1966 Basingstoke [panel] (YW)
C Basingstoke 'C' [Great Western] Named Basingstoke to 27 May 1956.  Code displayed on 'box.  Uncertain if used (or intended for use) on signals BKE 51m 17ch 1892 20 November 1966 Basingstoke [panel] (YW)
  Basingstoke East See Basingstoke 'A'          
YW Basingstoke [panel]
("Basingstoke Old")
  BML1 47m 41ch 20 November 1966    
DWA Automatic signals reading to YWD signals
RWA Repeaters to automatic signals
YWD Semi-automatic signals controlled from Ground Frame D
YWF Semi-automatic signals controlled from Ground Frame F
WA Automatic signals
BE Basingstoke Signalling Control Centre
("Basingstoke New")
  BML1 47m 55ch 16 April 2007    
BEF Feltham area signals.  Code used from January 2019
PW Poole to Wool section.  Code used from 19 May 2014
SE Salisbury to Exeter section.  Code used from 12 March 2012
EBU Bat And Ball Named Sevenoaks Bat And Ball to 5 June 1950.  Code used from 11 March 1962 OJS 25m 50ch c1877 22 November 1981 Sevenoaks (NE)
B Bates Staithes [Newsham]   ISC c2m 0ch      
BH Bathampton Junction Code used from 24 August 1969 MLN1 104m 46ch 21 September 1956 15 August 1970 Bristol (B)
DM Down main line automatic signals
DT Down Trowbridge line automatic signals BFB 0m 0ch
UM Up main line automatic signals
UM Bath Goods Up main line automatic signals MLN1 107m 31ch 30 April 1911 15 August 1970 Bristol (B)
BL Bathley Lane Gate box ECM1 122m 78ch 2 March 1930 3 February 1980 Doncaster (D)
B Batley Named Lady Anne Crossing to 17 April 1996 MDL1 35m 57ch 1878    
D Down line automatic signals
LA Code used to 17 April 1966
U Up line automatic signals
B Batley Uncertain whether code carried MDL1     16 April 1966 Batley (B)
  Battersby   MBW1 10m 54ch by 1887
(or 1902?)
20 August 1989 Nunthorpe (N)
MBW2 12m 10ch
HC Battersea Park Junction   VTB1 1m 21ch 1906 7 October 1979 Victoria Central (VC)
BP Battersea Pier 'A' Named Battersea Pier Junction to February 1925 VTB1 0m 77ch 1906 4 June 1939 Victoria Central (VC)
  Battersea Pier Junction See Battersea Pier 'A'          
EDN Battle   TTH 55m 46ch c1885 22 March 1986 Bo Peep Junction (BJ)
U Bawtry Up direction automatic signals ECM1 147m 60ch 1912 19 October 1975 Ranskill (RL)
B Bayford Code probably not carried HDB 16m 71ch c2 June 1910 3 September 1972 Kings Cross (K)
BH Bay Horse   CGJ6 c15m 12ch   26 November 1972 Preston (PN)
B Beaconsfield Formerly named Beaconsfield East.  Code used by 1952 NAJ2 11m 29ch 1905 7 December 1975 Marylebone (ME)
  Beaconsfield East See Beaconsfield
B Beal Code used from 10 April 1960 ECM7 58m 52ch   18 April 1982 Tweedmouth (T)
D Down direction automatic signals
U Up direction automatic signals
BJ Bearley West Junction   HSA 12m 58ch 1907 1 November 2010
(demolished 30 October 2010)
West Midlands Signalling Centre (HS/TB)
TSB 17m 61ch
  Bearsted   SBJ 42m 59ch 1 July 1884 14 April 1984 Maidstone East (ME)
B Beattock Temporary panel WCM1 49m 51ch 16 January 1972 29 April 1973 Motherwell (MC)
EG Beckenham Junction   VIR 8m 41ch 12 April 1959 13 February 1983 Victoria Signalling Centre (VS)
A Automatic signals
B Beckingham Panel fitted 4 December 1977 SPD4 100m 77ch 6 July 1876    
BC Becontree   FSS2 c9m 18ch   27 March 1961 Upminster (UM)
  Bedale Downgraded to gate box 5 February 1985; upgraded again 8 April 1990.  Line closed, 'box 'closed' on reopening REB2 7m 42ch 1875 4 April 1996  
CW Bedford Cauldwell Depot   SPC1 c49m 0ch 8 August 2004    
  Bedford North Junction   SPC1   25 November 1978 2 November 1980 West Hampstead (WH)
BD Bedford St Johns   BBM 15m 74ch 1977 6 September 2004 Marston Vale (MV)
LW Bedhampton Crossing Downgraded to gate box 28 January 1968 WPH2 38m 8ch 1879 3 June 1979 Havant (KW)
BC Bedlam Crossing Also known as Bedlam Gates Crossing CNN 3m 40ch   13 November 1988 Three Spires Junction (TS)
  Bedlam Gates Crossing See Bedlam Crossing
BN Bedlington North   EJM 15m 71ch 1912    
BS Bedlington South   EJM 15m 59ch      
  Bedminster   MLN1 119m 11ch 30 April 1932 5 April 1970 Bristol (B)
BN Bedwyn   BHL 66m 29ch 1897 11 September 1978 Reading (R)
S Beechbrook Farm [CTRL construction depot] Stop boards     4 June 2001   Site closed
  Beer Ferris Also known as Bere Ferrers DAC c222m 65ch by 1900 27 October 1968 Plymouth (P)
BC Beeston Castle & Tarporley   CNH1 168m 60ch 1915    
B Beeston Junction   DOL1 c182m 35ch     Leeds (L)
D Down line automatic signals
U Up line automatic signals
BN Beeston North Junction   TSN1 c124m 55ch     Trent (TT)
BNR Repeater signals
BJ Beighton Junction   CHR c155m 48ch   16 May 1982 Sheffield (S)
BN Code in use in 1974
BX Beighton Station Junction   BEW 47m 41ch 1890    
BL Belasis Lane   POC 1m 4ch 1929    
BD Belford Code used from 1962 ECM7 51m 45ch 25 February 1962 7 July 1990 Tweedmouth (TW)
B Unclear if code used
D Down line automatic signals
U Up line automatic signals
BL Bellgrove Code used from opening NEM2 0m 66ch 22 May 1960 28 July 1991 Yoker (YS)
BLR Banner repeater signals
Y Bellingham   CAT 8m 73ch 1 March 1942 17 January 1982 Victoria Signalling Centre (VS)
A Automatic signals
BL Bell Lane   SPC5   27 September 1891 29 June 1986 Leicester (LR)
BJ Bellside Junction Code used from 1973 EGS2 3m 57ch   29 June 1981 Motherwell (M)
BJ Bellwater Junction Code not carried on all signals GRS3 118m 55ch 12 June 1913    
BO Belmont Downgraded to gate box (1967?): line controlled by Starbeck (SS) HAY1 17m 69ch 1914    
B
BV Belvedere Downgraded to gate box 1970 NKL 12m 72ch 24 June 1956 25 January 1981 Dartford (D)
BR Benar Fawr Ground Frame   DJP 105m 4ch     Machynlleth (MH)
D Beningbrough Down line automatic and semi-automatic signals.  Code used by 1963 ECM5 c7m 1ch   c3 November 1963 York [PSB] (Y)
U Up line automatic and semi-automatic signals.  Code used by 1963
BC Bentley Colliery (also had draw-ahead signals lettered A to D with no number)  ECM1 158m 57ch February 1905 26 October 1980 Doncaster (D)
BY Code used by 1970
BC Bentley Crossing Code probably used from 1949 DOL1 157m 52ch 1891 7 December 1980
(delayed from 7 July 1979)
Doncaster (D)
BH Bentley Heath Downgraded to gate box 30 August 1969: line controlled by Saltley (SY) DCL 119m 44ch 1932 18 February 2008 West Midlands Signalling Centre (LJ)
U Bentley Junction Up direction automatic signals LTN1 63m 23ch 1880 30 June 1975 Manningtree (M)
B Bentley Junction   DOW 1m 4ch 1909 17 February 1980
(delayed from 7 July 1979)
Doncaster (D)
BJ HJB 3m 24ch
B Benton Some signals also had suffix X, the meaning of which is unclear ECM7 4m 26ch 1 March 1964 1991 (by 21 April) Tyneside (T)
D Down direction automatic signals (until 1979)
DC Down direction automatic signals
R Banner repeater signals
U Up direction automatic signals
BB Benton Bank   ECM7 c2m 60ch   5 September 1964 Heaton (H)
  Bere Ferrers See Beer Ferris
BL Berkswell Downgraded to gate box 2 July 1966 RBS1 c99m 30ch c1880s 24 May 2004 Coventry (CY)
BLR Repeater signals
  A shunt frame was closed and replaced by a new one nearby on 15 July 1979: unclear whether original frame refers to this 'box or another
BK Berwick   KJE3 15m 56ch 1879 late on 13 February 2015
(delayed from 22 November 2013)
Three Bridges Rail Operating Centre (TEB)
  Bescar Lane   WBS3 30m 78ch   9 May 1993
(delayed from 18 April 1993)
Burscough Bridge (BB)
BC Bescot Curve Junction Unclear if code carried DPJ c4m 73ch     Walsall (WL)
BD Bescot Depot   PBJ 8m 20ch      
DT Bescot Down Tower   PBJ 8m 20ch 1965 27 August 2013 West Midlands Signalling Centre (SB)
BT Reported but believed in error for DT
DTH Hump shunting signals
DTX "Set back" signals.  Code used from 12 March 1989
FTX "Set back" signals
  Bescot Up Hump   PBJ 8m 20ch 1963   Walsall (WL)
SB Bescot Yard Prefix exists on stop boards, not on signals per se          
BP Bestwood Park Junction   RAC 130m 6ch 1951 29 September 2001 Trent (TT)
BW Betchworth   RSJ 27m 14ch 12 April 1934 5 June 1983 Reigate (RG)
BG Bethnal Green   LTN1 1m 19ch 30 January 1949 24 March 1989 Liverpool Street [new] (L)
DF Down fast line automatic signals
DM Down main line automatic signals
DS Down suburban line automatic signals
R Repeater signals
UF Up fast line automatic signals
US Up slow line automatic signals
BG Bethnal Green East Junction   LTN1 1m 19ch c April 1891 29 January 1949 Bethnal Green (BG)
DF Down fast line automatic signals
DS Down suburban line automatic signals
UF Up fast line automatic signals
US Up suburban line automatic signals
BR Betley Road   LEC4 153m 13ch 1875 4 May 2004 Stoke on Trent Signalling Centre (SC)
BH Betteshanger Colliery Upgraded from ground frame 10 January 1962.  Disused from 1989 BME2 89m 11ch 1923 25 April 2009 Deal (EBZ)
B Bevercotes Colliery (also had draw-ahead signals lettered A to E with no number) BEC c4m 60ch      
BS Beverley Formerly named Beverley South HBS 8m 16ch 1911    
B Code replaced by BS
  Beverley South See Beverley
CCW Bexhill Named Bexhill Central to c1971.  Closed; reopened 21 December 1998 WJB 29m 61ch 27 March 1877 late on 13 February 2015
(delayed from 22 November 2013)
Three Bridges Rail Operating Centre (TEB)
D Distant signals
DCCW Distant signals
  Bexhill Central See Bexhill
  Bicester See Bicester London Road
B Bicester London Road Formerly named Bicester No 1; sometimes referred to as Bicester OXD 19m 31ch by 1883 1 June 1986 Oxford (OX)
BE Bicester East Depot Ground Frame   OXD 19m 71ch 2016?    
  Bicester No 1 See Bicester London Road
  Bicester No 2   OXD 19m 72ch 9 November 1941 29 October 1973 Bicester London Road (B)
BW Bicester West Depot Ground Frame   OXD 20m 20ch 2016?    
  Bidston Dee Junction   CWK3 4m 78ch 1936 18 September 1994 Merseyrail (ML)
WDB3 0m 9ch
BE Bidston East Junction   CWK2 4m 40ch 1937 10 September 1994 Merseyrail (ML)
CWK3 4m 40ch
BEN 4m 40ch
B Biggleswade   ECM1 38m 52ch 21 January 1901 16 January 1977 Kings Cross (K)
B Billingham on Tees   LEN3 63m 59ch 1904    
BT Billingshurst   TBH1 44m 73ch c1868 17 March 2014
(delayed from 25 October 2013)
Three Bridges [new] (T)
BS Bilton Siding   RTS c0m 65ch   August 1985? Rugby (RY)
BM Bingham   NOG1 119m 58ch 1875 30 November 2015 East Midlands Control Centre (GN)
B Bingley Station   TJC3 209m 7ch 1932 22 October 1994 Leeds (L)
PS Birchills Power Sidings Downgraded to shunt frame 4 June 1967       12 May 1980 Line closed
DE Birchington on Sea   VIR 70m 52ch   17 July 1968 Westgate on Sea (FE)
A Automatic signals
  Birkdale   HXS3 17m 26ch 1905 11 March 1994 Merseyrail (ML)
BC Birkenhead Central   MIR2 2m 34ch 1886 10 September 1994 Merseyrail (ML)
BCR Banner repeater signals
BN1 Birkenhead North No 1 See also note 2 CWK2 4m 22ch 1888 10 September 1994 Merseyrail (ML)
BN Birkenhead North No 2 See also note 2 CWK2 3m 78ch 1888 10 September 1994 Merseyrail (ML)
BP Birkenhead Park   CWK2?     28 February 1988 Birkenhead North No 2 (BN)
NS Birmingham New Street   RBS2 0m 16ch 10 January 1966 In phases from at least 27 August 2013 West Midlands Signalling Centre (AW/BW/CB/GS/ PA/SB/SP/WP)
RNS Repeater signals
B Birmingham [Snow Hill]   DCL 129m 24ch 11 September 1960 6 March 1972 Line closed.  Controlled by Saltley (SY) on reopening
SH Code used from 1968
B Birmingham Snow Hill North   DCL 129m 43ch 31 October 1909 11 September 1960 Birmingham [Snow Hill] (SH)
B Birmingham Snow Hill South   DCL 129m 21ch August 1903 11 September 1960 Birmingham [Snow Hill] (SH)
BE Bishop Auckland East   DAE2     24 March 1984 Shildon (S)
A Distant signals
D Down line automatic signals
U Up line automatic signals
BM Bishop Middleham   STF c9m 40ch   30 April 1984 Ferryhill (F)
BGS Bishopsgate South   LTN1   c1882 11 September 1949 Liverpool Street (L)
US Up suburban line automatic signals
BS Bishops Stortford   BGK 30m 22ch 1931 24 October 2003 (last train);
29 October 2003 (official)
Liverpool Street (L) [new]
D Down line automatic signals
RBS Repeaters to controlled signals
  Bishton Downgraded to gate box 17 April 1961: line controlled by Newport (N) SWM2 153m 0ch 7 February 1941    
BB Black Bank   EMP 75m 23ch 1883 14 May 1988 Chettisham (CH)
BB Blackboy Lane Crossing   TBH2 30m 25ch     Chichester (CC)
DBB Distant signal.  Code probably not carried
KSD Blackburn King Street depot   BBS4   2017    
BC Black Carr Junction   ECM1 153m 14ch 4 December 1875 21 August 1977 Decoy No 1 (DY)
BK Blackford Code used from 2002 SCM4 133m 28ch 26 June 1933    
J Blackfriars   HHH 0m 62ch 11 August 1946 14 February 1982 Victoria Signalling Centre (VS)
A Automatic signals
B Blackfriars Junction Code used to c1927 HHH 0m 64ch 21 March 1926 2 June 1941 Blackfriars Junction [temporary panel] (BJ)
BJ Code used from c1927
BJ Blackfriars Junction [temporary panel]   HHH c0m 62ch 2 June 1941 11 August 1946 Blackfriars (J)
B Blackhall Rocks   LEN3 c76m 69ch   6 April 1981 Horden (H)
U Up line automatic signals
N Blackheath 'A' Named Blackheath 'B' to 30 June 1929 BEX 6m 68ch by 1895 15 March 1970 St Johns (L)
EDG Blackheath 'B' Named Blackheath 'C' to 30 June 1929 BEX 7m 13ch c1 May 1895 15 March 1970 St Johns (L)
  Blackheath 'B' See Blackheath 'A'
  Blackheath 'C' See Blackheath 'B'
  Black Lion Same as Black Lion Gates?          
BL Black Lion Gates Code used by 14 April 1957.  Renamed Black Lion? CAM 19m 41ch 1895 7 February 1971 Black Lion?
BLR Distant signals
B Blackmoor Crossing   MAC2 30m 31ch c1875 16 May 1983 Line closed
BC  
BN Blackpool North No 1 Permanently switched out from 30 April 2007.  See also note 1 PBN 16m 79ch 1959 24 January 2011 Blackpool North No 2 (BN2)
BN1 Believed code used but not carried
BN2 Blackpool North No 2 See note 1.  Demolished 14 November 2017 PBN 17m 30ch 1896 early on 11 November 2017 (last train);
26 March 2018 (official)
Manchester Rail Operating Centre (BL)
BP2 Code reported in official documentation October 2009
BJ Blackrod Junction   MVE2 17m 27ch 1879 9 February 2013
(delayed from 21 January 2013)
Manchester Piccadilly (MP)
BE Blackwell East Junction   NHT1 0m 31ch     Trent (TT)
NHT2 137m 24ch
BA Blair Atholl Named Blair Atholl South to 25 August 1968.  Code used from 1978 HGL2 35m 5ch 1890    
  Blair Atholl South See Blair Atholl
BN Blakedown Dismantled 2013 to rebuild on new (non-railway) site OWW 138m 51ch 1888 28 August 2012 West Midlands Signalling Centre (DR)
BY Blankney Also known as Metheringham SPD2 72m 79ch 1929 4 April 2014
(delayed from 23 September 2013)
Lincoln Control Centre (SL)
B Blaydon   NEC1 5m 22ch      
BN
D Down line automatic signals
RD Banner repeaters to down line automatic signals
CC Had a signal numbered 33/CC/23, the full meaning of which is unclear
BM Blea Moor   SAC 248m 39ch 1941    
BP Blenkinsop   NEC2 c40m 19ch   22 February 1987 Haltwhistle (HW)
BY Bletchley   LEC1 46m 46ch 28 June 1965 7 June 2004 (in part);
31 December 2012 (remainder)
Rugby Signalling Control Centre (TK)
BYR Repeater signals 5 September 2004 (in part);
31 December 2012 (remainder)
Rugby Signalling Control Centre (KR)
B Blindwells   ECM8 c10m 61ch     Sidings closed
BH Blisworth Shunt Frame   LEC1 c62m 74ch 25 September 1983 5 September 2004 Rugby (RY)
BT Blotoft Named Blotoft Sidings to c1986.  Code carried by colour light but not semaphore signals SPD1 55m 26ch 24 February 1882 11 August 2014
(delayed from 30 December 2013)
Lincoln Control Centre (WS)
BS Code used by 12 November 1978
  Blotoft Sidings See Blotoft
BH Bloxwich   RRN1 2m 7ch February 1959 27 August 2013 West Midlands Signalling Centre (RR)
BHR Repeater signals
BHX Set back signals
BRR Code believed reported in error
  Blue House Crossing See Motspur Park
R Blyth B [Power] Station At least one signal     3 September 1967    
H  
BR Bognor Regis   BBR 25m 51ch 29 May 1938    
BC Boldon Colliery Code used from May 1985.  Damaged by fire 21 April 2000, reopened 4 June 2000 LEN3 95m 19ch 1893 11 January 2002 Tyneside (T)
B Code used by 1982
BY Code used from 15 November 1970
BL Bollo Lane Junction   BOK5 2m 64ch 1878 4 June 2012 Acton Wells Junction (AW)
BN Bolton On site of Bolton East MVE1 10m 31ch 8 December 1985 14 January 1990
(delayed from 29 April 1989)
Manchester Piccadilly (MP)
BP Bolton Percy   NOC 10m 77ch 1904 13 March 1983 York [PSB] (Y)
B Bo'ness Junction   EGM1 27m 5ch 30 April 1933 12 March 1979 Polmont (PB)
B Bootham   YMS 1m 51ch   30 April 1989 Strensall (S)
  Boothferry Road See Goole
BE Bootle (Cumbria)   CBC1 53m 37ch 1874    
BJ Bootle Junction   HXS3 2m 33ch   13 April 1986 Bootle Junction [new] (BJ)
BJ Bootle Junction [new]   HXS3 2m 34ch 13 April 1986 11 March 1994 Merseyrail (ML)
BJ Bo Peep Junction Code used from 1986 TTH 60m 65ch c1912    
EDK Code used to 1986 WJB 32m 72ch
BS Bordesley South   DCL 127m 62ch 30 November 1913 30 August 1969 Saltley (SY)
BY Bordesley Down Yard Ground Frame   DCL 127m 71ch      
B Boroughbridge Road Code used from 1939 LLP2 42m 22ch   10 June 1979 Low Gates (LB)
BR Code used by 1973 LLP3 42m 22ch
BG Borough Green Named Wrotham to 18 June 1962 SBJ 29m 47ch 1874 9 December 1983 Maidstone East (ME)
D Borough Market Junction   XTD 1m 60ch 27 June 1926 15 April 1976 London Bridge (L)
BH Borth Capel Soar Ground Frame   SBA2 87m 59ch     Machynlleth (MH)
  Bosham   TBH2 31m 49ch 1904 14 November 1992
(delayed from 26 September 1992)
Chichester (CC)
  Boston Dock Swing Bridge   No ELR?   c1887    
WS Boston West Street Junction   GRS3 107m 13ch 1874    
BT Botley   ETF 78m 59ch 1873 20 June 1982 Eastleigh [new] (E)
BW Bottesford West Junction   NOG1 113m 78ch May 1876 30 November 2015 East Midlands Control Centre (GN)
B Code reported but possibly not carried
BC Boughton Crossing   NMH c3m 0ch      
BJ Boughton Junction   HIM 20m 15ch 26 October 1961 22 July 1984 Ollerton Colliery (OC)
BC Boultham Crossing   NOB1 31m 17ch 19 April 1925 19 March 1988 West Holmes (WH)
BG Bounds Green   HDB 5m 30ch 1889 14 September 1974 Wood Green (WG)
B
BG Bounds Green Carriage Sidings Ground Frame   HDB 5m 35ch 14 December 1975   Bounds Green South End (BG)?
BG Bounds Green South End   ECM1 5m 5ch 12 December 1994
(delayed from 4 November 1994)
   
BE Bourne End Ground switch panel WBB 28m 50ch 11 February 2008    
WFB Bournemouth Named Bournemouth Central to 1973 BML2 108m 10ch 8 July 1928 15 December 2003 Bournemouth [new] (BC)
RWA Distant to automatic signals
WA Automatic signals
BC Bournemouth [new]   BML2 108m 10ch 15 December 2003    
  Bournemouth Carriage Sidings Named Bournemouth West Junction to 12 December 1965 when downgraded to ground frame BBD 0m 68ch 5 March 1888 1 March 2009 Bournemouth West Carriage Sidings (BW)
  Bournemouth Central See Bournemouth
BW Bournemouth West Carriage Sidings Stop boards BBD   2 March 2009    
DP Depot building protection signals
B Bowesfield   DSN2 10m 75ch 1905 11 March 2019 York Rail Operating Centre (B)
  Bowesfield Junction (controlled a signal labelled F with no number)      3 June 1928? 22 March 1969? Bowesfield (B)?
B Bow Junction   LTN1 2m 69ch 24 July 1949 8 April 1996 Liverpool Street (L)
BJ
DE Down electric line automatic signals
DM Down main line automatic signals
RB Banner repeater signals GFB 3m 39ch
U Up line automatic signals
UE Up electric line automatic signals
UM Up main line automatic signals
BW Bowling Code used from 1959 NEM5 12m 72ch 25 October 1959 22 February 1992 Yoker (YD)
BJ Bowling Junction   MRB 39m 22ch   5 August 1979 Mill Lane Junction (M)
B
EP Bow Road   CDT c0m 30ch      
  BP Terminal LC [Grangemouth]   GMH 3m 68ch 1970    
BZ Brabazon Crossing   AFR 113m 27ch 26 April 1992 4 April 1993 Bristol (B)
BN Bracknell   RDG1 32m 34ch c1876 27 January 1974 Wokingham (WM)
BFS Bradford Forster Square   SBF 208m 40ch 1890 21 October 1984 Shipley Bradford Junction (BR)
B Code used at closure
BJ Bradford Junctions   WEY 104m 23ch 2 May 1933 17 March 1990 Westbury [new] (W)
DT Down Trowbridge line automatic signals
UB Up branch line automatic signals.  Code used from 1969
UT Up Trowbridge line automatic signals
  Bradford On Avon   BFB 7m 1ch 1877 31 July 1966 Bradford Junctions (BJ)
B Bradley Junction   MVL3 c28m 41ch     Healey Mills (HM)
BS Bradwell Sidings   CMD2 16m 29ch 1889 18 May 2002 (last train);
27 May 2002 (official)
Stoke on Trent Signalling Centre (SOT)
X Set back signals
B Braidhurst   SCM1 90m 25ch   17 December 1972 Motherwell (M)
WBC Bramley   BKE 46m 38ch 1917 23 October 1977 Basingstoke [panel] (YW)
RWA Repeaters to automatic signals
WA Automatic signals
B Bramley   LBE1 3m 22ch 27 April 1924 6 July 1969 Leeds (L)
D Down line automatic signals
U Up line automatic signals
BF Brampton Fell   NEC2 50m 10ch 1918    
B Brancliffe East Junction Code used from December 1979 MAC3 53m 57ch 1905 29 November 1997 Worksop (WP)
B Brandon Code used by 1980 ETN 86m 25ch 1931 20 August 2012
(delayed from 25 June 2012)
Cambridge (EN)
BB Brandy Bridge Code used by 14 April 1957 CAM 23m 67ch   27 November 1967 Abercynon (AB)
BBR Distant signals
WBZ Branksome   BML2 110m 46ch 14 December 1886 15 December 2003 Bournemouth [new] (BC)
BY Bransty Code used from 2008 CBC1 74m 73ch 1899    
CBC2 0m 16ch
BN Brayton Downgraded to gate box 7 May 1973 TCW1 173m 2ch   6 March 1988 Selby Panel (S)
N BREL North Ground Frame Opening date uncertain, certainly open by then ECM1   16 September 1979    
  Brent Knoll   MLN1 142m 39ch 6 August 1891 29 January 1972 Bristol (B)
BS Brent Sidings   LEC1 6m 41ch   13 July 1996 Willesden PSB (WN)
B Brentwood   LTN1 18m 16ch 29 October 1933 9 January 1972 Shenfield (S)
DL Down local line automatic signals
DT Down through line automatic signals
UL Up local line automatic signals
UM Up main line automatic signals
UT Up through line automatic signals
BS Brereton Sidings   RRN2 13m 25ch 1908 27 August 2013 West Midlands Signalling Centre (RR)
B Unclear if code carried on signals
  Brewery Sidings   MPR1 1m 59ch 1894 15 September 1998 Manchester North (MN)
F Bricklayers Arms Junction   LBW 2m 16ch 8 October 1950 20 July 1975 London Bridge (L)
A Automatic signals
BJ Bridge Junction   ECM1 155m 38ch 1 May 1878 7 July 1979 Doncaster (D)
BC Bridgeton Central Code used from 8 February 1960 BGN 0m 77ch 1912 30 October 1988 Yoker (YF) (in part);
Line closed (remainder)
B  
  Bridgwater   MLN1 151m 29ch 26 June 1932 18 March 1972 Bristol (B)
BN Bridlington Named Bridlington South to 9 February 1998.  Code used from renaming HBS 30m 58ch 1875    
B Code shown on signalling plan
BS Code used when named Bridlington South
BQ Bridlington Quay   HBS 31m 6ch 1911 7 February 1998 Bridlington (BN)
  Bridlington South See Bridlington
BD Brierfield Downgraded to gate box 7 December 1986: line controlled by Preston (PN) GJC 24m 17ch 1876 29 September 2014
(delayed from 31 March 2014)
Preston (PN)
B Brigg   MAC3 91m 23ch 1885    
D Brighouse Down line automatic signals
(thought that up line indicates to Elland)
MVN2 c34m 36ch   31 May 1970 Elland (E)
CB Brighton   VTB3 50m 37ch 16 October 1932 30 March 1985 Three Bridges [new] (T)
L Brighton Lovers Walk Depot   VTB3 49m 74ch 1985    
BN Carriage shed
BIY Code used from February 2006
B Brightside   TJC2 161m 16ch 25 April 1965 18 March 1973 Sheffield (S)
D Down line automatic signals
U Up line automatic signals.  Unclear whether code exists
BD Brimsdown   BGK 10m 66ch 1944 27 August 2002 Liverpool Street (L)
D Down line automatic signals
U Up line automatic signals
BW Brinklow   LEC2 c88m 0ch   12 September 1964 Rugby (RY)/
Nuneaton (NN)
RY Temporary code until taken over by Rugby (RY)
RY Brinnington Temporary 'box jointly controlling two Romiley Junction signals TTA1 180m 18ch 26 October 1986 ? Romiley Junction (RY)
B Bristol   MLN1 118m 26ch 7 March 1970 4 January 2010 (in part) South Wales Control Centre (NT) (in part)
BD Down direction automatic signals on up Badminton line
BU Up direction automatic signals on down Badminton line
DA Down Avonmouth line automatic signals
DB Down Badminton line automatic signals
DB Down Bristol line automatic signals
DC Down Charfield line automatic signals
DF Down Filton line automatic signals
DFM Down Filton main line automatic signals
DFR Down Filton relief line automatic signals
DM Down main line automatic signals
DT Down Trowbridge line automatic signals
DT Down Tunnel line automatic signals
MD Down direction automatic signals on up main line
MU Up direction automatic signals on down main line
UA Up Avonmouth line automatic signals
UB Up Badminton line automatic signals
UC Up Charfield line automatic signals
UF Up Filton line automatic signals
UFM Up Filton main line automatic signals
UFR Up Filton relief line automatic signals
UM Up main line automatic signals
UT Up Trowbridge line automatic signals
UT Up Tunnel line automatic signals
V Code reported in 1980 notice, thought to be typing error for 'B'
  Bristol East   MLN1 118m 5ch 29 November 1935 7 March 1970 Bristol (B)
  Bristol East Depot Down Yard   MLN1 117m 21ch c1889 18 July 1970 Bristol (B)
ED Bristol East Depot Main Line Box moved to Hungerford 1972 MLN1 116m 77ch 11 January 1960 18 July 1970 Bristol (B)
  Bristol Loco Yard   MLN1 118m 38ch 9 December 1934 15 March 1970 Bristol (B)
PM Bristol St Philips Marsh   BRL 0m 42ch (April?) 1893 18 July 1970 Bristol (B)
PM Bristol St Philips Marsh Depot   BRL 0m 40ch 2 August 1991    
Road Ground signals 1-4 protecting Marsh Junction shed building
  Bristol West   MLN1 118m 51ch 26 May 1935 12 April 1970 Bristol (B)
  Bristol West Depot   MLN1 120m 68ch 1906 4 December 1971 Bristol (B)
B British Steel Scunthorpe            
BG Broad Green   DSE c3m 47ch     Edge Hill (EH)
BH Broadwath Ground Box Code probably not carried on signals NEC2 c54m 61ch     Corby Gates (CG)
BH Brockenhurst Named Brockenhurst 'A' to 19 October 1978 when new panel installed.  Code used from renaming BML2 92m 57ch 22 November 1964    
WDV Code used to 19 October 1978
RWA Repeaters to automatic signals.  Code used to 19 October 1978
WA Automatic signals.  Code used to 19 October 1978
  Brockenhurst 'A' See Brockenhurst
B Brocklesby   MAC3 99m 33ch 1914 30 December 2015 York Rail Operating Centre (B)
BJ Unclear if code used
Q Brockley Lane Code used from 30 June 1929 NTL 6m 37ch   7 March 1973 Nunhead (R)
  Brodsworth Colliery (had draw-ahead signals lettered A to D with no number)           
BD Bromfield   SHL 25m 20ch 1873   Wales Rail Operating Centre (NS) (planned)
BB Bromford Bridge   DBP3 38m 43ch   23 August 1969 Saltley (SY)
B Bromley By Bow   FSS1 3m 12ch   1 May 1961? Fenchurch Street (F)
BC Bromley Cross Downgraded to gate box 14 January 1990: line controlled by Manchester Piccadilly (MP) BBB 13m 47ch 1875    
Z Bromley North   BNG 10m 36ch 25 January 1959 4 November 1976 London Bridge (L)
B Brompton   LEN3 c44m 57ch     Low Gates (LG)
D Down line automatic signals
U Up line automatic signals
BS Bromsgrove South   BAG2 55m 61ch c1922 21 April 1969 Gloucester (G)
  Brook Hall Road Gate box HXS3 5m 69ch 1885 11 March 1994 Merseyrail (ML)
BR Brookhouse Colliery   MAC3     29 March 1987 Woodhouse Junction (WH)
RW Brookwood   BML1 28m 0ch 7 July 1907 5 June 1966 Woking (WV)
B Broomfleet   HUL1 14m 33ch 19 May 1904 23 November 2018 (last train);
26 November 2018 (official)
(delayed from 3 April 2018)
York Rail Operating Centre (GH)
WDF Broom Gates Downgraded to gate box 10 June 1967 BAE2 141m 13ch 1875 20 August 1967 Chard Junction (C)
  Broomhill see Elsecar Junction (E)
BE Brough East   HUL1 10m 24ch 28 February 1904 23 November 2018 (last train);
26 November 2018 (official)
(delayed from 3 April 2018)
York Rail Operating Centre (GH)
B Unclear whether code used
BN Broxbourne   BGK 17m 24ch 10 July 1960 27 May 2003 Liverpool Street (L)
D Down line automatic signals
U Up line automatic signals
BJ Broxbourne Junction Code used from 31 January 1960 BGK 18m 37ch 4 November 1951 31 January 1982 Liverpool Street (L)
U Up line automatic signals.  Code used from 31 January 1960
  Brundall Gate box: line controlled by Brundall Junction (BL) NOL 5m 62ch      
BL Brundall Junction   NOL 5m 73ch 1883   Colchester [new] (YL) (planned)
  Bryn y Gwynon Gate box SWM2 185m 9ch by 1884 c9 August 1993 Port Talbot (PT)
  Buckland Crossing Gate box VIR 49m 16ch c1880 7 December 1997 Faversham (EY)
S Buildwas Power Station Control Room Sometimes also known as Ironbridge Power Station MJI2 159m 60ch January 1969?    
D1 Departure line 1 signals
D2 Departure line 2 signals
ES Unloading hopper signals
BW Bullfield West   MVE2 c11m 15ch   20 January 1990
(delayed from 28 April 1989)
Manchester Piccadilly (MP)
B Bullhouse Colliery   MAC1 25m 77ch by 1880 14 October 1973 Thurlstone Crossing (T)
BPE Bullo Pill East   SWM2 125m 69ch (June?) 1873 2 June 1969 Gloucester (G)
CF Burgess Hill   VTB3 41m 46ch 7 November 1926 31 August 1963 Keymer Crossing (CG)
BHX Burneside Higher Crossing Gate Box: line controlled by Carlisle (CE) OXW 3m 64ch      
B Burngullow Formerly Burngullow West MLN3 288m 56ch 1895 4 October 1986 Par (PR)
  Burngullow West See Burngullow
  Burn Lane Gate box: line controlled by Selby West (S).  Demolished 1-8 February 2014 TCW1 170m 70ch 28 November 1971 25 January 2014 Selby Panel (S)
BC Burnley Central   GJC     7 December 1986 Preston (PN)
B Burnmouth   ECM8 51m 60ch 25 January 1893 31 March 1968 Edinburgh (EG)
R Banner repeater signals
BS Burrows Sidings Code used by 20 January 1973 VON 46m 66ch 1910 16 December 1990 Port Talbot (PT)
  Burrs Road Gate box: line controlled by Clacton (C) COC 68m 4ch   4 May 2009 Colchester [new] (CO)
BB Burscough Bridge   WBS3 27m 50ch 1922    
  Burton Agnes   HBS 25m 45ch 1875 or 1903 4 February 1990 Driffield (D)
BH Burton & Holme Named Burton & Holme No 2 to 27 June 1971 CGJ7       Carlisle (CE)?
BHR Repeater signals
  Burton & Holme No 2 See Burton & Holme
BL Burton Lane   YMS 1m 9ch 1878 30 April 1989 Strensall (S)
BS Burton Salmon   NOC c16m 69ch   10 October 1982 Milford (M)
B Unclear if code actually carried
D Down line automatic signals
U Up line automatic signals
BY Bury St Edmunds Named Bury St Edmunds Yard to 11 August 1985 CCH 28m 33ch 1888    
BJ Bury St Edmunds Junction   CCH 28m 60ch by 1893 7 May 1983 Bury St Edmunds Yard (BY)
  Bury St Edmunds Yard See Bury St Edmunds
BE Bushey   CWJ 15m 75ch   10 December 1988 Willesden Suburban (WS)
RBE Repeater signals
B Butterwell (also had draw-ahead signals lettered A to D with no number)  BWO 6m 10ch 1977    
- Buxton   BEJ 18m 70ch 1894    
BS Briggs Sidings fixed signals and stop boards.  Code used from 25 May 2018
BX Buxton Depot Code used from opening.  Signals suffixed I or O for inbound or outbound movements BEJ   17 May 1993    
BL Bystable Lane Code seen a little north of Thornton Abbey station BAR c102m 10ch      

Notes

  1. An RSSB report quotes a BP-prefixed signal for "Blackpool North" without specifying to which 'box it applies.  It is believed that this code was not carried.
  2. A resignalling notice quotes both BN and BN1 for "Birkenhead North".  Whether BN2 was ever used is unclear.

 

Introduction | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Non-National Rail | Ireland | Western region MAS dates | Mechanical signalling bell codes