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

UM series of older car registration numbers.

Registration letters >> UM series
This page lists registration number codes from the UM series, a series allocated to the Leeds (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 GUM or TUM 512D would be a Leeds (B)-issued number. A car with just two letters, ie UM, would also be from this area. Listed below are the known UM 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.
UM Registrations - Leeds (B).
Reg. Letters Year Letter Start -> End Date (if known)
AUM J FEB 1971 ->
AUM C FEB 1965 ->
AUM FEB 1935 ->
AUM FEB 1962 ->

CUM J JUN 1971 ->
CUM C JUN 1965 ->
CUM MAR 1936 ->
CUM JUL 1962 ->

DUM K SEP 1971 ->
DUM C OCT 1965 ->
DUM NOV 1936 ->
DUM DEC 1962 ->

EUM K NOV 1971 ->
EUM D FEB 1966 ->
EUM JUN 1937 ->
EUM APR 1963 ->

FUM K FEB 1972 ->
FUM D APR 1966 ->
FUM MAR 1938 ->
FUM JUL 1963 ->

GUM K APR 1972 ->
GUM D AUG 1966 ->
GUM DEC 1938 ->
GUM NOV 1963 ->

HUM K JUL 1972 ->
HUM E JAN 1967 ->
HUM AUG 1939 ->
HUM MAR 1964 ->

JUM L AUG 1972 ->
JUM E APR 1967 ->
JUM MAY 1946 ->
JUM MAY 1964 ->

KUM L NOV 1972 ->
KUM F AUG 1967 ->
KUM MAY 1947 ->
KUM AUG 1964 ->

LUM L DEC 1972 ->
LUM F OCT 1967 ->
LUM JUN 1948 ->

MUM F JAN 1968 ->
MUM JUL 1949 ->

NUM F APR 1968 ->
NUM JUL 1950 ->

OUM G AUG 1968 ->
OUM F JUL 1968 ->
OUM AUG 1951 ->

PUM G OCT 1968 ->
PUM OCT 1952 ->

RUM M SEP 1973 ->
RUM G JAN 1969 ->
RUM E MAR 1967 ->
RUM JUL 1953 ->

SUM M NOV 1973 ->
SUM G APR 1969 ->
SUM MAR 1954 ->

TUM H AUG 1969 ->
TUM OCT 1954 ->

UM JAN 1925 -> JUN 1927
UM FEB 1961 ->

UUM H NOV 1969 ->
UUM APR 1955 ->

VUM H MAR 1970 ->
VUM SEP 1955 ->

WUM H MAY 1970 ->
WUM MAR 1956 ->

XUM J AUG 1970 ->
XUM OCT 1956 ->

YUM J NOV 1970 ->
YUM APR 1957 ->
Return to the main vehicle registrations page.

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