@JeffSchaller A normalized version,
{{'18187511395', '8187511395'}}
, of that pattern is already on the number blacklist. You can use
!!/bisect-number +1(818)-751-1395
to determine which entries on the number lists match that pattern, which would tell you: Matched by
+1(818)-751-1395
on
line 3320 of blacklisted_numbers.txt: +1(818)-751-1395 found verbatim; 8187511395 found normalized