This should be easy enough.
Pattern to match: ^411$
Trans rule: +4155551212
We are matching 411, stripping 3 digits (all the 411) and replacing it with +4155551212
I'm assuming you need a + on the output to route it.

You might need to be careful of the priority of the rule so a higher rule doesn't translate it to something else.
Hope that helps
Tom
Tom Arbuthnot, Consultant Modality Systems
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