regex101: French Insurance Number

^start of string

Character Class[1-478]

1-4one character from 1 (49₁₀) to 4 (52₁₀)

7the literal 7 (55₁₀ / 67₈ / 37₁₆)

8the literal 8 (56₁₀ / 70₈ / 38₁₆)

Character Class[0-9]{2}

{2}matches exactly 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Group 1(0[1-9]|1[0-2]|62|63)

1st Alternative0[1-9]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

2nd Alternative1[0-2]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Character Class[0-2]

0-2one character from 0 (48₁₀) to 2 (50₁₀)

3rd Alternative62

62the literal text 62

4th Alternative63

63the literal text 63

Group 2(2[ABab]|[0-9]{2})

1st Alternative2[ABab]

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Character Class[ABab]

Athe literal A (65₁₀ / 101₈ / 41₁₆) (case sensitive)

Bthe literal B (66₁₀ / 102₈ / 42₁₆) (case sensitive)

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

bthe literal b (98₁₀ / 142₈ / 62₁₆) (case sensitive)

2nd Alternative[0-9]{2}

Character Class[0-9]{2}

{2}matches exactly 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Group 3(00[1-9]|0[1-9][0-9]|[1-8][0-9]{2}|9[0-8][0-9]|990)

1st Alternative00[1-9]

00the literal text 00

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

2nd Alternative0[1-9][0-9]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

Character Class[0-9]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

3rd Alternative[1-8][0-9]{2}

Character Class[1-8]

1-8one character from 1 (49₁₀) to 8 (56₁₀)

Character Class[0-9]{2}

{2}matches exactly 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

4th Alternative9[0-8][0-9]

9the literal 9 (57₁₀ / 71₈ / 39₁₆)

Character Class[0-8]

0-8one character from 0 (48₁₀) to 8 (56₁₀)

Character Class[0-9]

5th Alternative990

Group 4(00[1-9]|0[1-9][0-9]|[1-9][0-9]{2})

Group 5(0[1-9]|[1-8][0-9]|9[0-7])?

$end of string, or before its final line terminator

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Search reference

Regular Expression

^[1-478][0-9]{2}(0[1-9]|1[0-2]|62|63)(2[ABab]|[0-9]{2})(00[1-9]|0[1-9][0-9]|[1-8][0-9]{2}|9[0-8][0-9]|990)(00[1-9]|0[1-9][0-9]|[1-9][0-9]{2})(0[1-9]|[1-8][0-9]|9[0-7])?$

Test String
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193104221833161

Regular Expressions 101

Regular Expression

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Regular Expression

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