@Makyen A normalized version,
{{'16289176203', '6289176203'}}
, of that pattern is already on the number blacklist. You can use
!!/bisect-number 628-917-6203
to determine which entries on the number lists match that pattern, which would tell you: Matched by
62891 76203(?#IS NorAm)
on
line 839 of blacklisted_numbers.txt: 6289176203 found normalized