Observations & Ruminations about AAdvantage Account Numbers (consolidated)
Apr 2, 2010, 5:33 pm
#46
FlyerTalk Evangelist
Original Poster
Join Date: Jan 2001
Location: NYC
Programs: AA EXP / LT PLT / 3MM, Marriott LT Gold
Posts: 35,388
Apr 2, 2010, 5:39 pm
#47
FlyerTalk Evangelist
Join Date: Mar 2004
Location: SJC
Programs: AA EXP, BA Silver, Hyatt Globalist, Hilton diamond, Marriott Platinum
Posts: 33,533
Maybe some should write and ask AA. One of three things will happen:
A. The will get an actual answer.
2. The answer will be "Gee, I don't know.
Γ. The black helicopters will circle the questioners house.
Cheers.
A. The will get an actual answer.
2. The answer will be "Gee, I don't know.
Γ. The black helicopters will circle the questioners house.
Cheers.
Apr 2, 2010, 5:42 pm
#49
Moderator: Alaska Mileage Plan
Join Date: Feb 2005
Posts: 12,316
You do remember what company we're talking about, right? Whatever the formula, it was devised in the era of form-fed impact printers.
Apr 2, 2010, 5:46 pm
#50
FlyerTalk Evangelist
Join Date: Mar 2004
Location: SJC
Programs: AA EXP, BA Silver, Hyatt Globalist, Hilton diamond, Marriott Platinum
Posts: 33,533
If you wanted a continuous measure of, say, velocity, you'd want to know how fast it is actually going as opposed to "it's moving or not moving." Unless you're standing in front of it
As an "order of magnitude" zero represents "ten to the power zero" which is identically '1', and is usually used as a scale factor. But that's a separate discussion.
Cheers.
Apr 2, 2010, 5:52 pm
#51
Join Date: Jul 2000
Location: FLL
Posts: 1,679
(Note that, originally, AAdvantage numbers had numerical characters only. Then, around the early 90s, they started using three letters followed by four numbers. Nowadays, it's a random combination of numbers and letters, but, as we both seem to have noticed, they always end in an even number.)
Apr 2, 2010, 6:21 pm
#54
Join Date: Mar 2006
Location: Hotlanta.
Programs: I've gone underground!
Posts: 4,602
The last digit is a checksum digit based on multiplying other numbers by "2". Obviously the last digit must be an even number.
Apr 2, 2010, 6:24 pm
#55
Join Date: Jun 2006
Location: SFO/OAK
Programs: AA EXP 3.4MM, BAEC, UAMP, Skyteam (<10k) HH Gold, IHG Plat, Hertz Gold, GE/TSA TT
Posts: 2,723
Apr 2, 2010, 6:54 pm
#56
Join Date: Apr 2006
Location: LAX
Programs: AA EXP>2m, Alaska MVP, Virgin Gold, Delta Gold, Starwood Gold, Cathay Pacific Silver
Posts: 599
I got my number a few weeks after the Aadvantage program started and my number ends with a 6.
It's amazing what you learn on FlyerTalk.
It's amazing what you learn on FlyerTalk.
Apr 2, 2010, 7:33 pm
#57
Join Date: Apr 2008
Location: Austin, TX
Programs: AA GLD .25MM, CO, UA, US, DL, HH, SPG (all cardboard)
Posts: 1,951
My AAdvantage number is from the mid 1980's and doesn't follow either pattern. It follows the AB12346 pattern, the last digit being even. My first ff enrollment was with TWA soon after it started in 1981. United was a few months later. I lost about 3,000 miles in Eastern. I couldn't find my number to try to merge it with Continental.
My number ends in 8.
Apr 2, 2010, 7:45 pm
#58
FlyerTalk Evangelist
Join Date: Aug 2001
Location: Finally back in Boston after escaping from New York
Posts: 13,644
I've got an email in. This year will be my last as ExPlat, so might as well make good use of customer service while they still love me.
Mike
Mike
Apr 2, 2010, 7:55 pm
#59
Moderator: American AAdvantage
Join Date: May 2000
Location: NorCal - SMF area
Programs: AA LT Plat; HH LT Diamond, Maître-plongeur des Muccis
Posts: 62,948
Maybe:
Dear AAdvantage(r) Member,
We have received your AAdvantage inquiry and are eager to respond.
Although we are working hard to answer each message as quickly and
thoroughly as possible, please be aware that you may experience a delay
as lengthy as 15 business days due to extremely heavy email volume. We
regret the inconvenience and appreciate your patience.
In the meantime, we invite you to visit our Web site at
aa.com/aadvantage for general program information. If you need
immediate assistance with your AAdvantage account, AAdvantage Customer
Service may also be reached at 800-882-8880 between the weekday hours of
7:30 AM - 9:00 PM Central Time (or 7:30-7:00 Saturday / 10:30-7:00
Sunday). Or, if you find that your questions fall under another
department's area of expertise, please feel free to contact that
department directly. For your convenience, a contact list for our
departments is available on our Web site at www.aa.com (select 'Contact
AA').
Dear AAdvantage(r) Member,
We have received your AAdvantage inquiry and are eager to respond.
Although we are working hard to answer each message as quickly and
thoroughly as possible, please be aware that you may experience a delay
as lengthy as 15 business days due to extremely heavy email volume. We
regret the inconvenience and appreciate your patience.
In the meantime, we invite you to visit our Web site at
aa.com/aadvantage for general program information. If you need
immediate assistance with your AAdvantage account, AAdvantage Customer
Service may also be reached at 800-882-8880 between the weekday hours of
7:30 AM - 9:00 PM Central Time (or 7:30-7:00 Saturday / 10:30-7:00
Sunday). Or, if you find that your questions fall under another
department's area of expertise, please feel free to contact that
department directly. For your convenience, a contact list for our
departments is available on our Web site at www.aa.com (select 'Contact
AA').
Apr 2, 2010, 8:24 pm
#60
FlyerTalk Evangelist
Original Poster
Join Date: Jan 2001
Location: NYC
Programs: AA EXP / LT PLT / 3MM, Marriott LT Gold
Posts: 35,388
As I said earlier, it makes absolutely no sense from a logical, mathematical or technical standpoint to have a general multiplier of 2 in the checksum formula. All it does is make your check digit half as reliable.