regex101: JavaScript Match Workspace

Pro

1st Alternative^5[1-5]\d{14}$

^start of line

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

Character Class[1-5]

1-5one character from 1 (49₁₀) to 5 (53₁₀)

\d{14}a digit, repeated exactly 14 times

$end of line

2nd Alternative^2(?:2(?:2[1-9]|[3-9]\d)|[3-6]\d\d|7(?:[01]\d|20))\d{12}$

^start of line

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Non-Capturing Group(?:2(?:2[1-9]|[3-9]\d)|[3-6]\d\d|7(?:[01]\d|20))

1st Alternative2(?:2[1-9]|[3-9]\d)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Non-Capturing Group(?:2[1-9]|[3-9]\d)

1st Alternative2[1-9]

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Character Class[1-9]

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

2nd Alternative[3-9]\d

Character Class[3-9]

3-9one character from 3 (51₁₀) to 9 (57₁₀)

\da digit

2nd Alternative[3-6]\d\d

Character Class[3-6]

3-6one character from 3 (51₁₀) to 6 (54₁₀)

\da digit

3rd Alternative7(?:[01]\d|20)

7the literal 7 (55₁₀ / 67₈ / 37₁₆)

Non-Capturing Group(?:[01]\d|20)

1st Alternative[01]\d

Character Class[01]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\da digit

2nd Alternative20

20the literal text 20

\d{12}a digit, repeated exactly 12 times

$end of line

Global pattern flags

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

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

26 tokens

Regular Expression

^5[1-5]\d{14}$|^2(?:2(?:2[1-9]|[3-9]\d)|[3-6]\d\d|7(?:[01]\d|20))\d{12}$

New

1221009999999999
2121009999999999
2211009999999999
2220009999999999
2221009999999999
2321009999999999
2499999999999999
2720999999999999
2721009999999999
2721999999999999
2730999999999999
2820999999999999
4111111111111111
5055555555555555
5100000000000000
5255555555555555
5444444444444444
5555555555555555
5600000000000000
5911111111111111

Extraction

1221009999999999
2121009999999999
2211009999999999
2220009999999999
2221009999999999
2321009999999999
2499999999999999
2720999999999999
2721009999999999
2721999999999999
2730999999999999
2820999999999999
4111111111111111
5055555555555555
5100000000000000
5255555555555555
5444444444444444
5555555555555555
5600000000000000
5911111111111111