@Makyen A normalized version,
{{'919883430603'}}
, of that pattern is already on the number blacklist. You can use
!!/bisect-number 919883430603
to determine which entries on the number lists match that pattern, which would tell you: Matched by
+91–988-3430-603
on
line 2655 of blacklisted_numbers.txt: 919883430603 found normalized