Difference Between 737 800 vs 737 823

Why are the last two numbers different? Why “823”? I see this with other aircraft too. Does it have to do with it’s configuration? Sorry, I don’t really know how to phrase the question better.

23 is the Boeing delivery code for that airplane, in this case, it’s for American Airlines :)


They are both exactly the same plane, just the last two digits are the delivery code: like a serial number for each livery. American Airlines has 23 at the end so this is a 737-800 for American Airlines.

Hope it helps!


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