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See Homepage. This page: Find out more about the 'CO' series of registration numbers, used in the Plymouth (B) area.

CO series of older car registration numbers.

Registration letters >> CO series
This page lists registration number codes from the CO series, a series allocated to the Plymouth (B) 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 GCO or TCO 512D would be a Plymouth (B)-issued number. A car with just two letters, ie CO, would also be from this area. Listed below are the known CO 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.
CO Registrations - Plymouth (B).
Reg. Letters Year Letter Start -> End Date (if known)
ACO A SEP 1962 ->
ACO FEB 1937 ->

BCO B APR 1964 ->
BCO MAY 1938 ->

CCO B OCT 1964 ->
CCO JUL 1939 ->

CO JAN 1904 -> JUN 1926

DCO C APR 1965 ->
DCO MAY 1946 ->

ECO D JAN 1966 ->
ECO C NOV 1965 ->
ECO NOV 1947 ->

FCO D MAY 1966 ->
FCO JUL 1949 ->

GCO E FEB 1967 ->
GCO D JUN 1966 ->
GCO DEC 1950 ->

HCO F AUG 1967 ->
HCO JUL 1952 ->

JCO F MAR 1968 ->
JCO OCT 1953 ->

KCO G OCT 1968 ->
KCO OCT 1954 ->

LCO H AUG 1969 ->
LCO G JUN 1969 ->
LCO JUL 1955 ->

MCO H FEB 1970 ->
MCO MAY 1956 ->

NCO J AUG 1970 ->
NCO APR 1957 ->

OCO J MAR 1971 ->
OCO JAN 1958 ->

PCO K SEP 1971 ->
PCO SEP 1958 ->

RCO K FEB 1972 ->
RCO APR 1959 ->

SCO L AUG 1972 ->
SCO K JUL 1972 ->
SCO SEP 1959 ->

TCO L NOV 1972 ->
TCO MAR 1960 ->

UCO L MAR 1973 ->
UCO SEP 1960 ->

VCO M AUG 1973 ->
VCO APR 1961 ->

WCO M DEC 1973 ->
WCO OCT 1961 ->

XCO JUN 1962 ->

YCO MAR 1963 ->
Return to the main vehicle registrations page.

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