Go to mysdbb.org and you can find this information on your account. If you have not created an account click the "Need help logging in ?" button and follow the directions
As long as it was with the San Diego Blood Bank it takes about 2-3 business days post donation, you can call back with your information and should be able to tell you your blood type. Thank you for donating!!
They say it at the end when you donate. I'm sure you could call and ask, as well.
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