LT Cabin/Signal Box Codes 1906-2006 Other lines

The rest of the tube lines:

BAKERLOO ORIGINAL SERIES
A - Edgware Road 1907-1913/15? (crossover replaced by Paddington/Queens Pk) Date given as both 1906 and 1907.
A - Queens Park 1915-37 (recoded BB)
B - Great Central (Marylebone) 1907-1915? (reference to replacement by Piccadilly Circus?) Date given as both 1906 and 1907.
B - Piccadilly Circus 1915-39 (recoded BP)
C - Paddington 1913-39 (recoded BD)
D - Kennington Rd (Lambeth Nth) 1906-39 (recoded BR)
D - London Road Depot 1906-15 (control transferred to Lambeth Nth D)
E - Elephant & Castle 1906-41 (recoded BS)

BAKERLOO CURRENT
BA - Unused
BB - Queens Park 1937-91 IMR 1991-
BC - Unused
BD - Paddington 1939-89 IMR 1989-
BE - BL Unused (why such a jump in codes?)
BM - Baker Street 1939-77 IMR 1977- (controls Jubilee, previously Bakerloo Stanmore Branch)
BN - BO Unused
BP - Piccadilly Circus 1939-91 IMR 1991- (controlled Picc Line starters until 1980)
BR - Lambeth North 1939-1991
BR - Waterloo IMR 1991- (also controls Elephant BS)
BS - Elephant & Castle 1941-91 Waterloo IMR 1991-

I have not included the LMS/BR lines north of Queens Park as they are non-LT signalling. The cabin codes generally used the initials of the station in main-line fashion (ie 'HL' Headstone Lane 'HR' Harrow 'KT' Kenton etc.

CENTRAL LONDON ORIGINAL SERIES
A - Liverpool Street 1912-37 (recoded LB)
B - Bank 1914-41 (recoded CB)
C - British Museum 1914-1933 (replaced by Holborn C)
C - Holborn 1933-41 (recoded CC)
D - Marble Arch 1914-41 (recoded CD)
E - Queens Road (Queensway) 1914-41 (recoded CE)
F - Shepherd's Bush 1914-38 (crossover removed)
G - Wood Lane 1914-48 (transferred to White City CG)
H - Unused
J - Wood Lane Junction 1920-38 (junction to GWR removed)
K - North Acton 1920-47 (recoded CJ)
L - Ealing Broadway 1920-52 (taken over by District Line WP)

CENTRAL LINE 'C-PREFIX' CODES
CA - Unused
CB - Bank 1941-71 (crossover removed)
CC - Holborn 1941-94 (resignalling)
CD - Marble Arch 1941-94 (resignalling)
CE - Queens Road (Queensway) 1941-84 (crossover removed)
CF - Unused (Shepherd's Bush cabin had closed 1938)
CG - White City 1948-96 (resignalling)
CH - Unused
CJ - North Acton 1947-96 (resignalling)
CK - Unused
CL - Greenford 1947-60 (reversing facilities transferred to Northolt)
CM - CO Unused
CP - Northolt IMR 1960-96 (resignalling)
CR - Unused
CS - West Ruislip/Ruislip Gardens 1948-96 (resignalling)

CENTRAL LINE 'L-PREFIX' CODES
LB - Liverpool Street 1937-97 (resignalling)
LC - Bethnal Green 1946-95 (resignalling)
LD - Drapers Field (Leyton) 1946-47 (temporary reversing siding)
LE - Leyton 1947-71 (connection to BR removed)
LF - Leytonstone 1947-97 (resignalling)
LG - Snaresbrook GF 1947-? (goods yard closed)
LH - South Woodford 1947-72
LJ - Woodford 1947-97 (resignalling)
LK - Unused (possibly reserved for Woodford Junction)
LL - Hainault/Grange Hill 1948-97 (resignalling)
LM - Fairlop GF 1948-64 (goods yard removed)
LN - Barkingside GF 1948-65 (goods yard removed)
LO - Unused
LP - Newbury Park 1947-94 (resignalling)
LQ - LR Unused
LS - Buckhurst Hill GF 1948-65 (goods yard removed)
LT - Loughton 1948-97 (resignalling)
LU - Debden 1949-96 (resignalling)
LV - Theydon Bois GF 1949-67 (yard closed)
LW - Epping 1949-96 (resignalling)
LX - North Weald 1957-78 (loop removed 1976)
LY - Blake Hall GF 1957-67 (no signals, LY reference only)
LZ - Ongar 1957-69 (yard closed) - starting signal recoded LX (21) as operated from North Weald (and later Epping)

I have not included the current Central Line codes as these are part of a different type of coding for use with the new signalling.

VICTORIA LINE
VA - VD Unused
VE - Brixton IMR 1971-
VF - Victoria IMR 1969-
VG - Warren Street IMR 1968-
VH - Kings Cross IMR 1968-
VJ - Highbury IMR 1968-
VK - Finsbury Park IMR 1968-
VL - Seven Sisters IMR 1968-
VM - Unused
VN - Northumberland Park IMR 1968-
VO - Unused
VP - Walthamstow Central IMR 1968-

JUBILEE LINE 'J-SERIES' 1984 ONWARDS
JA - JC Unused
JD - Finchley Road IMR 1985-
JE - Willesden Green IMR 1984- (plus cabin 1985-87)
JF - In use for Northwood
JG - Wembley Park IMR 1984-
JH - Unused
JJ - In use for Watford South Junction
JK - Unused
JL - Stanmore IMR 1984-
JM - Neasden IMR 1985-

PROPOSED FLEET LINE/EAST LONDON CODES
These are per an LT plan for the proposed line circa 1972
RA - RB Unused
RC - Charing Cross
RD - Fenchurch Street
RE - Rotherhithe/Surrey Docks
RF - Canal Junction
RG - Unused
RH - New Cross Gate
RJ - New Cross
RK - Lewisham

JUBILEE LINE T-SERIES
TA - TF Unused
TG - Charing Cross IMR 1978-
TH - Waterloo
TJ - London Bridge
TK - Canada Water
TL - Canary wharf
TM - North Greenwich
TN - Unused
TO - Unused
TP - Southwark (2 signals)
TQ - Unused
TR - Bermondsey (1 signal)
TS - Unused
TT - Unused
TU - West Ham/Stratford (West end)
TV - Unused
TW - Stratford
TX - Unused
TY - Stratford Market Depot