@VLAZ A normalized version,
{{'8885075030', '18885075030'}}
, of that pattern is already on the number blacklist. You can use
!!/bisect-number 18885075030
to determine which entries on the number lists match that pattern, which would tell you: Matched by
18885075030
on
line 3984 of blacklisted_numbers.txt: 18885075030 found verbatim