@tripleee A normalized version,
{{'17853039129', '7853039129'}}
, of that pattern is already on the number blacklist. You can use
!!/bisect-number +1 7853039129
to determine which entries on the number lists match that pattern, which would tell you: Matched by
+1 7853039129
on
line 932 of blacklisted_numbers.txt: +1 7853039129 found verbatim; 7853039129 found normalized