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See Homepage. This page: Find out more about the 'AO' series of registration numbers, used in the Cumberland area.

AO series of older car registration numbers.

Registration letters >> AO series
This page lists registration number codes from the AO series, a series allocated to the Cumberland 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 GAO or TAO 512D would be a Cumberland-issued number. A car with just two letters, ie AO, would also be from this area. Listed below are the known AO 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.
AO Registrations - Cumberland.
Reg. Letters Year Letter Start -> End Date (if known)
AAO J JAN 1971 ->
AAO B MAR 1964 ->
AAO DEC 1933 ->
AAO OCT 1959 ->

AO JAN 1904 -> APR 1924

BAO J APR 1971 ->
BAO B MAY 1964 ->
BAO JUL 1935 ->
BAO MAR 1960 ->

CAO K AUG 1971 ->
CAO B SEP 1964 ->
CAO JAN 1937 ->
CAO JUN 1960 ->

DAO K NOV 1971 ->
DAO C JAN 1965 ->
DAO APR 1938 ->
DAO NOV 1960 ->

EAO K JAN 1972 ->
EAO C APR 1965 ->
EAO AUG 1939 ->
EAO MAR 1961 ->

FAO K APR 1972 ->
FAO C JUL 1965 ->
FAO JUL 1943 ->
FAO JUL 1961 ->

GAO L AUG 1972 ->
GAO K JUN 1972 ->
GAO D JAN 1966 ->
GAO OCT 1946 ->
GAO JAN 1962 ->

HAO L SEP 1972 ->
HAO D MAR 1966 ->
HAO JAN 1948 ->
HAO MAY 1962 ->

JAO L NOV 1972 ->
JAO D JUN 1966 ->
JAO MAR 1949 ->
JAO OCT 1962 ->

KAO E JAN 1967 ->
KAO D NOV 1966 ->
KAO APR 1950 ->
KAO MAR 1963 ->

LAO E MAR 1967 ->
LAO AUG 1951 ->
LAO JUN 1963 ->

MAO F AUG 1967 ->
MAO E JUN 1967 ->
MAO NOV 1952 ->
MAO OCT 1963 ->

NAO F SEP 1967 ->
NAO SEP 1953 ->

OAO F JAN 1968 ->
OAO MAY 1954 ->

PAO F APR 1968 ->
PAO JAN 1955 ->

RAO G AUG 1968 ->
RAO AUG 1955 ->

SAO G NOV 1968 ->
SAO MAR 1956 ->

TAO G MAR 1969 ->
TAO NOV 1956 ->

UAO H AUG 1969 ->
UAO G JUN 1969 ->
UAO JUL 1957 ->

VAO H OCT 1969 ->
VAO FEB 1958 ->

WAO H FEB 1970 ->
WAO JUL 1958 ->

XAO J AUG 1970 ->
XAO H MAY 1970 ->
XAO DEC 1958 ->

YAO J SEP 1970 ->
YAO MAY 1959 ->
Return to the main vehicle registrations page.

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