@CodyGray A normalized version,
{{'3012915009', '13012915009'}}
, of that pattern is already on the number watchlist. You can use
!!/bisect-number +1 301 291 5009
to determine which entries on the number lists match that pattern, which would tell you: Matched by
+1 301 291 5009
on
line 3459 of watched_numbers.txt: +1 301 291 5009 found verbatim; 3012915009 found normalized