@Cow A normalized version,
{{'8089008011', '18089008011'}}
, of that pattern is already on the number blacklist. You can use
!!/bisect-number 18089008011
to determine which entries on the number lists match that pattern, which would tell you: Matched by
18089008011
on
line 723 of blacklisted_numbers.txt: 18089008011 found verbatim