@Vickel A normalized version,
{{'18442315896', '8442315896'}}
, of that pattern is already on the number blacklist. You can use
!!/bisect-number 18442315896
to determine which entries on the number lists match that pattern, which would tell you: Matched by
+1-844-231-5896
on
line 1674 of blacklisted_numbers.txt: 18442315896 found normalized