@JeffSchaller A normalized version,
{{'16267174521', '6267174521'}}
, of that pattern is already on the number watchlist and the pattern you provided is not an exact match to an existing entry on the number watchlist. You can use
!!/bisect-number 6267174521(?#IS NorAm)
to determine which entries on the number lists match that pattern, which would tell you: Matched by
6267174521
on
line 3484 of watched_numbers.txt: 6267174521 found verbatim