Org. that compiles a Most Popular Baby Names list

• Org. of concern to AARP
• Org. that uses the pattern XXX-XX-XXXX
• Nine-digit ID issuer
• Org. that's got your number?
• Agency that issues numeric ID's
• Lifeline for srs.
• Government org. for retirees
• Govt. org. dating from the 1930s
• It has many benefits: Abbr.

Wikipedia Word definitions in Wikipedia
SSA may refer to: