@Cow A normalized version,
{{'6370801178'}}
, of that pattern is already on the number blacklist. You can use
!!/bisect-number 6370-801-178(?# no noram)
to determine which entries on the number lists match that pattern, which would tell you: Matched by
6370801178
on
line 3182 of blacklisted_numbers.txt: 6370801178 found normalized