Postcode

Change History

 

DSCN 10/04 (W)

To amend the All Wales Data Dictionary entry for the data term 'Postcode'

 

 

For information

Postcode of address

Format: 8 character alpha-numeric with 5th character position being blank.

Format Key – a = alpha character (A-Z); n = numeric character (0-9); a/n = alphanumeric character (A-Z or 0-9).

Character Position

1

2

3

4

5

6

7

8

Format

a

a/n

a/n

a/n

space

n

a

a

Coding Frame

Outward Code

space

Inward Code

 

 

Examples:-

Character Position

Notes

1

2

3

4

5

6

7

8

 

W

9

 

 

 

3

X

X

 

D

A

1

 

 

5

P

L

 

C

F

2

4

 

0

H

A

 

Z

Z

9

9

 

4

L

Z

Pseudo Postcodes, Defaults and Overseas

 

 

Pseudo codes

There are occasions when the use of a 'pseudo code' is necessary, particularly when dealing with an overseas address. Full details of pseudo country codes and other codes may be obtained from the Office of National Statistics website. Some of the more common pseudo codes are:-

ZZ99 3VZ

No fixed abode

ZZ99 3CZ

England/U.K  not otherwise specified

ZZ99 3GZ

Wales not otherwise specified

ZZ99 1WZ

Scotland not otherwise specified

ZZ99 2WZ

Northern Ireland not otherwise specified