Lidstaat Structure (NL) Format (NL)*
AT-Oostenrijk ATU99999999 1 block of 9 characters (nl)
BE-België BE0999999999 1 block of 10 digits
BG-Bulgarije BG999999999 or
BG9999999999 (nl)
1 block of 9 digits or1 block of 10 digits (nl)
CY-Cyprus CY99999999L 1 block of 9 characters (nl)
CZ-Tsjechië CZ99999999 or
CZ999999999 or
CZ9999999999
(nl)
1 block of either 8, 9 or 10 digits (nl)
DE-Duitsland DE999999999 1 block of 9 digits (nl)
DK-Denemarken DK99 99 99 99 4 blocks of 2 digits (nl)
EE-Estland EE999999999 1 block of 9 digits (nl)
EL-Griekenland EL999999999 1 block of 9 digits (nl)
ES-Spanje ESX9999999X4 1 block of 9 characters (nl)
FI-Finland FI99999999 1 block of 8 digits (nl)
FR-Frankrijk FRXX 999999999 1 block of 2 characters, 1 block of 9 digits (nl)
GB-Verenigd Koninkrijk GB999 9999 99 or
GB999 9999 99 9995 or
GBGD9996 or
GBHA9997 (nl)
1 block of 3 digits, 1 block of 4 digits and 1 block of 2 digits; or the above followed by a block of 3 digits; or 1 block of 5 characters (nl)
HR-Kroatië HR99999999999 1 block of 11 digits
HU-Hongarije HU99999999 1 block of 8 digits (nl)
IE-Ierland IE9S99999L
IE9999999WI
1 block of 8 characters or 1 block of 9 characters
IT-Italië IT99999999999 1 block of 11 digits (nl)
LT-Litouwen LT999999999 or
LT999999999999 (nl)
1 block of 9 digits, or 1 block of 12 digits (nl)
LU-Luxemburg LU99999999 1 block of 8 digits (nl)
LV-Letland LV99999999999 1 block of 11 digits (nl)
MT-Malta MT99999999 1 block of 8 digits (nl)
NL-Nederland NL999999999B998 1 block of 12 characters (nl)
PL-Polen PL9999999999 1 block of 10 digits (nl)
PT-Portugal PT999999999 1 block of 9 digits (nl)
RO-Roemenië RO999999999 1 block of minimum 2 digits and maximum 10 digits (nl)
SE-Zweden SE999999999999 1 block of 12 digits (nl)
SI-Slovenië SI99999999 1 block of 8 digits (nl)
SK-Slowakije SK9999999999 1 block of 10 digits (nl)

Remarks:

*: Format excludes 2 letter alpha prefix
9: A digit
X: A letter or a digit
S: A letter; a digit; "+" or "*"
L: A letter (NL)

Notes:

1: The 1st position following the prefix is always "U".
2: The first digit following the prefix is always zero ('0').
3: The (new) 10-digit format is the result of adding a leading zero to the (old) 9-digit format.
4: The first and last characters may be alpha or numeric; but they may not both be numeric.
5: Identifies branch traders.
6: Identifies Government Departments.
7: Identifies Health Authorities.
8: The 10th position following the prefix is always "B". (NL)