@Cow A normalized version,
{{'18048539001', '8048539001'}}
, of that pattern is already on the number blacklist. You can use
!!/bisect-number +1-804-853-9001
to determine which entries on the number lists match that pattern, which would tell you: Matched by
18048539001
on
line 2478 of blacklisted_numbers.txt: 18048539001 found normalized; 8048539001 found normalized