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Blocking 9 Digit Numbers

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Ok everyone, I'm out of permutations of things to try to block numbers with 9 contiguous numbers like 123456789. We're doing to this to block SSN's from being sent both internally and externally.

I've used every pattern from \d\d\d\d\d\d\d\d\d to ^\s\d\d\d\d\d\d\d\d\d(\s|$) and none will seem to block the numbers like I want.  I can get it to block 9 digit numbers but when I send a 10 digit number, it get's blocked too.  IF anyone has a pattern that'll block all 9 digit numbers ONLY whether they have text before, space before, and text or spaces after, I'd like to see it.  I'm burned out trying different combinations of these patterns.

thanks in advance


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