Army & Air Force Exchange Service and Costco Wholesale are both in the Retail category. Costco Wholesale has more statement variations (21).
The Army & Air Force Exchange Service (often branded as "The Exchange") is the U.S. Department of Defense’s retail organization operating tax‑free stores, malls, and services on Army and Air Force installations worldwide, including the Elmendorf Main Exchange at Joint Base Elmendorf–Richardson in Alaska.
Costco Wholesale is a membership-based warehouse club chain that sells a wide range of products including groceries, electronics, household goods, and apparel, often in bulk at discounted prices.
| Aspect | Army & Air Force Exchange Service | Costco Wholesale |
|---|---|---|
| Number of statement variations | 1 codes | 21 codes |
| Category | Retail | Retail |
| Typical code format | avg 14 chars | numeric codes, avg 48 chars |
| Location in code | Rarely included | Often included |
| Average code length | 14 characters | 48 characters |
| Website | shopmyexchange.com | costco.com |
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