If the general structure is the same, and only the lengths vary, you can use the "at least N but not more than M" construct in regular expressions:

if ($value =~ /\d{1,3}\s{1,2}-\d{3,5}\s{1,4}/)
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This will match 1, 2, or 3 digits, then 1 or 2 whitespace, then a hyphen, then 3, 4, or 5 digits, then 1 to 4 whitespace characters. As an aside, in situations like this, the /x modifier is very handy, because it lets you put the comments right in your pattern:

if ($value =~ 
    /\d{1,3}     # 1 to 3 digits
     \s{1,2}     # 1 or 2 whitespace
     -           # exactly one hyphen
     \d{3,5}     # 3, 4, or 5 digits
     \s{1,4}     # 1 to 4 whitespace
    /x)
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BTW, the pattern you've given doesn't match your sample data. Did you mean \w instead of \s?