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See Homepage. This page: Find out more about the 'BY' series of registration numbers, used in the London (originally Croydon) area.

BY series of older car registration numbers.

Registration letters >> BY series
This page lists registration number codes from the BY series, a series allocated to the London (originally Croydon) area. Also included, where known, are the date periods that these car registration numbers were used in. The data covers the period of 1900 through to 1972, so registrations seen on later cars wouldn't necessarily be included in this information.

Interpreting a car's registration number.

The majority of post-war car numbers incorporate a three letter code - where this is the case, letters 2 and 3 signify the location code. So, for instance, a car with the registration number 638 GBY or TBY 512D would be a London (originally Croydon)-issued number. A car with just two letters, ie BY, would also be from this area. Listed below are the known BY series registrations, with added information (where available) describing when each series was first used, and in a few cases, when it came to an end. Some letter codes were used for more than one period during the 20th Century. This information can be invaluable when trying to date vehicles seen in old photographs, or in old films for instance.
Also if your car has lost it's original registration, perhaps sold off by a previous owner as a "cherished" number, this information will help you find a suitable replacement, or at least identify which series would be suitable, based on the age of your car and where it was first registered.
BY Registrations - London (originally Croydon).
Reg. Letters Year Letter Start -> End Date (if known)
ABY G APR 1969 ->
ABY C JAN 1965 ->
ABY SEP 1934 ->
ABY APR 1963 ->

BBY H AUG 1969 ->
BBY C MAR 1965 ->
BBY NOV 1935 ->
BBY OCT 1963 ->

BY DEC 1903 -> ___ 1922
BY JUN 1960 ->

CBY H AUG 1969 ->
CBY D MAY 1966 ->
CBY NOV 1936 ->
CBY MAR 1964 ->

DBY H MAR 1970 ->
DBY D SEP 1966 ->
DBY NOV 1937 ->
DBY JUN 1964 ->

EBY J AUG 1970 ->
EBY D NOV 1966 ->
EBY DEC 1938 ->
EBY SEP 1964 ->

FBY J OCT 1970 ->
FBY D JUN 1966 ->
FBY JAN 1946 ->

GBY J MAY 1971 ->
GBY D JUL 1966 ->
GBY JUN 1947 ->

HBY K MAR 1972 ->
HBY D SEP 1966 ->
HBY MAR 1949 ->

JBY K AUG 1971 ->
JBY D JAN 1966 ->
JBY JUL 1950 ->

KBY K AUG 1971 ->
KBY D MAR 1966 ->
KBY NOV 1951 ->

LBY K JAN 1972 ->
LBY D JAN 1966 ->
LBY FEB 1953 ->

MBY L AUG 1972 ->
MBY D JAN 1966 ->
MBY JAN 1954 ->

NBY D ->
NBY OCT 1954 ->

OBY E JAN 1967 ->
OBY JUN 1955 ->

PBY E FEB 1967 ->
PBY JAN 1956 ->

RBY L FEB 1973 ->
RBY E JAN 1967 ->
RBY SEP 1956 ->

SBY L JAN 1973 ->
SBY F AUG 1967 ->
SBY MAY 1957 ->

TBY M AUG 1973 ->
TBY F DEC 1967 ->
TBY FEB 1958 ->

UBY M SEP 1973 ->
UBY F FEB 1968 ->
UBY AUG 1958 ->

VBY JAN 1959 ->

WBY G AUG 1968 ->
WBY JUN 1959 ->

XBY G AUG 1968 ->
XBY NOV 1959 ->

YBY G JAN 1969 ->
YBY MAY 1960 ->
Return to the main vehicle registrations page.

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