^start of string
\+?optionally matches the literal + (4310 / 538 / 2B16)
8?optionally matches the literal 8 (5610 / 708 / 3816)
\s?optionally matches any whitespace character
-?optionally matches the literal - (4510 / 558 / 2D16)
Group 1(20|33|36|50|55|61|62|65|66|67|69|70|71|72|73|74|75|76|77|78|79|88|90|91|93|94|95|97|98|99) \s?optionally matches any whitespace character
-?optionally matches the literal - (4510 / 558 / 2D16)
\s?optionally matches any whitespace character
-?optionally matches the literal - (4510 / 558 / 2D16)
\s?optionally matches any whitespace character
-?optionally matches the literal - (4510 / 558 / 2D16)
$end of string, or before its final line terminator