Govt. old-age insurer

• Org. that has its benefits
• Sender of monthly checks: Abbr
• Govt. ID issuer
• Agency for retirees: Abbr
• Org. that's got your number?
• Org. that gives out 9-digit IDs
• Govt. benefits issuer
• Org. with an annual list of top baby names
• 123-45-6789 org.

Wikipedia Word definitions in Wikipedia
SSA may refer to: