Related Clues:

• They have nine digits and two hyphens, briefly
• Personnel data, briefly
• Tax-form IDs
• Credit application figs.
• IDs sought by phishers
• IDs that go on Form 1040
• Ranking nos.
• Fed. retirement IDs
• Hyphenated figs.
• I.R.S. data: Abbr.
• Three-part nos.
• Tax return IDs
• Figs. in a 3-2-4 format
• IDs first issued in 1936
• Payroll dept. IDs