^start of line
Negative Lookahead(?!0{3}) 0{3}the literal 0 (4810 / 608 / 3016) , repeated exactly 3 times
Negative Lookahead(?!6{3}) 6{3}the literal 6 (5410 / 668 / 3616) , repeated exactly 3 times
0-8one character from 0 (4810) to 8 (5610)
\d{2}a digit, repeated exactly 2 times
-the literal - (4510 / 558 / 2D16)
Negative Lookahead(?!0{2}) 0{2}the literal 0 (4810 / 608 / 3016) , repeated exactly 2 times
\d{2}a digit, repeated exactly 2 times
-the literal - (4510 / 558 / 2D16)
Negative Lookahead(?!0{4}) 0{4}the literal 0 (4810 / 608 / 3016) , repeated exactly 4 times
\d{4}a digit, repeated exactly 4 times
$end of line
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