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Ar

1. Ar is the 75,431st most popular last name (surname) in the United States; frequency is 0.000%; percentile is 89.204 [SourceCBN]
2. Argentina [Nation] ISO-3166 2-letter code is AR [SourceCIAW]
3. Arkansas, United States [State] US Postal Service abbreviation is AR [SourceSTA]