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

IZ series of older car registration numbers.

Registration letters >> IZ series
This page lists registration number codes from the IZ series, a series allocated to the Mayo 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 GIZ or TIZ 512D would be a Mayo-issued number. A car with just two letters, ie IZ, would also be from this area. Listed below are the known IZ 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.
IZ Registrations - Mayo.
Reg. Letters Year Letter Start -> End Date (if known)
AIZ OCT 1954 ->

BIZ JUL 1955 ->

CIZ AUG 1956 ->

DIZ FEB 1958 ->

EIZ JAN 1959 ->

FIZ OCT 1959 ->

HIZ JUN 1960 ->

IIZ APR 1961 ->

IZ DEC 1903 -> OCT 1954
IZ MAY 1971 ->

JIZ JAN 1962 ->

KIZ AUG 1962 ->

LIZ MAY 1963 ->

MIZ JAN 1964 ->

NIZ JUL 1964 ->

OIZ MAR 1965 ->

PIZ SEP 1965 ->

RIZ JUN 1966 ->

SIZ FEB 1967 ->

TIZ SEP 1967 ->

UIZ MAY 1968 ->

VIZ NOV 1968 ->

WIZ MAY 1969 ->

XIZ NOV 1969 ->

YIZ MAY 1970 ->

ZIZ OCT 1970 ->
Return to the main vehicle registrations page.

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