@Cow A normalized version,
{{'18002211212', '8002211212'}}
, of that pattern is already on the number blacklist. You can use
!!/bisect-number 18002211212
to determine which entries on the number lists match that pattern, which would tell you: Matched by
+1-800-221-1212
on
line 1783 of blacklisted_numbers.txt: 18002211212 found normalized