IDNO
4 letters
Historical clue formulations
- Fig. on a driver's license — 2026-01-15
- Some unique digits: Abbr. — 2023-10-22
- Passport fig. — 2022-05-11
- Info on a security badge, for short — 2022-04-14
- Driver's license fig. — 2021-12-31
- Fig. on a driver's license or passport — 2020-02-04
- Alternative to a name: Abbr. — 2017-10-01
- Nine-digit fig. on a Social Security card — 2017-06-26
- Social Security fig. — 2017-06-18
- Prisoner's assignment: Abbr. — 2016-06-30
- Security figure: Abbr. — 2014-04-04
- "___ idea!" — 2010-02-18
- Fig. on a driver's license — 2008-06-24
- "___ idea!" — 2005-12-04
