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

JO series of older car registration numbers.

Registration letters >> JO series
This page lists registration number codes from the JO series, a series allocated to the Oxford (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 GJO or TJO 512D would be a Oxford (B)-issued number. A car with just two letters, ie JO, would also be from this area. Listed below are the known JO 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.
JO Registrations - Oxford (B).
Reg. Letters Year Letter Start -> End Date (if known)
AJO C MAR 1965 ->
AJO DEC 1934 ->
AJO SEP 1956 ->

BJO C JUL 1965 ->
BJO JUL 1935 ->
BJO MAY 1957 ->

CJO D JAN 1966 ->
CJO APR 1936 ->
CJO DEC 1957 ->

DJO D MAY 1966 ->
DJO NOV 1936 ->
DJO JUL 1958 ->

EJO E JAN 1967 ->
EJO D NOV 1966 ->
EJO MAY 1937 ->
EJO JAN 1959 ->

FJO E APR 1967 ->
FJO MAR 1938 ->
FJO JUN 1959 ->

GJO F SEP 1967 ->
GJO NOV 1938 ->
GJO OCT 1959 ->

HJO F JAN 1968 ->
HJO JUN 1939 ->
HJO MAR 1960 ->

JJO F MAY 1968 ->
JJO SEP 1944 ->
JJO JUL 1960 ->

JO JUN 1930 -> APR 1934

KJO G OCT 1968 ->
KJO JUL 1946 ->
KJO JAN 1961 ->

LJO G MAR 1969 ->
LJO JAN 1947 ->
LJO MAY 1961 ->

MJO H AUG 1969 ->
MJO OCT 1947 ->
MJO NOV 1961 ->

NJO H JAN 1970 ->
NJO JAN 1949 ->
NJO MAY 1962 ->

OJO H MAY 1970 ->
OJO DEC 1949 ->

PJO J SEP 1970 ->
PJO OCT 1950 ->
PJO DEC 1962 ->

RJO J JAN 1971 ->
RJO SEP 1951 ->
RJO JUN 1963 ->

SJO K AUG 1971 ->
SJO J MAY 1971 ->
SJO JUL 1952 ->
SJO OCT 1963 ->

TJO K SEP 1971 ->
TJO APR 1953 ->
TJO MAR 1964 ->

UJO K JAN 1972 ->
UJO DEC 1953 ->
UJO JUL 1964 ->

VJO K FEB 1972 ->
VJO JUL 1954 ->

WJO K MAY 1972 ->
WJO FEB 1955 ->

XJO K JUN 1972 ->
XJO JUN 1955 ->

YJO K JUL 1972 ->
YJO JAN 1956 ->
Return to the main vehicle registrations page.

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