Regex expression

Hello all, not sure if this is the right place for this. I am not the best with Regex and was looking for an expression in a Juniper that will match on only so many numbers. Meaning, I am looking at the mpls lsp statistics "show mpls lsp transit statistics" and I only want to see the LSP's that have larger Bytes, for instance I only want to see stuff that has at least 12 digits or longer. Any help would be greatly appreciated, and if this is the wrong thing to ask here, I have no qualms with that either 😊 Thanks again.