Article: Who Designed the World of Hyatt Membership Numbers?!

[AFF Editor]

Canonical URL

https://www.australianfrequentflyer.com.au/world-of-hyatt-membership-numbers/

Who Designed the World of Hyatt Membership Numbers?! is an article written by the AFF editorial team:

Who Designed the World of Hyatt Membership Numbers?!

Many World of Hyatt membership numbers end in the letter O or I. This makes no sense because the letters O and I are easily - and frequently - confused for numbers.

www.australianfrequentflyer.com.au

You can leave a comment or discuss this topic below.

 

[moa999]

Interesting.
Agree ending in an O or an I is silly - particularly if that is common.

I suspect it might be some form of checksum digit (many credit cards use a form of this) that would enable offline validation using a simple formula.
But If so it seems Hyatt isn't implementing this on its or partners systems.

Simple checksum would be
Account 11111 is actually displayed as 111115 where the last digit is the sum of the numbers dropping any tens. Equally 33334 would become 333346

 

[serfty]

Mine ends with a V.

It is a bit silly having I and O.

Many sports stadia do not designate rows O or I for the reasons expressed. (e.g. MCG)

 

[RooFlyer]

To avoid confusion, those issued by airlines using Amadeus (like Qantas) never include the numbers 0 or 1, nor the letters O or I, as these look too similar.

Sorry to spin O/T so early @AFF Editor , but Qantas PNRs do include letters O and I .

 

[DC3]

Mine ends with a V.

Y here
.

 

[serfty]

Sorry to spin O/T so early @AFF Editor , but Qantas PNRs do include letters O and I .

Yes, occasionally I have had issues, at least it is 6 characters maximim.

 

[AFF Editor]

Sorry to spin O/T so early @AFF Editor , but Qantas PNRs do include letters O and I .

Ah yes indeed, you are correct. The numbers 0 and 1 are not used. Have corrected the article.

I guess my confusion with that just proves why Hyatt membership numbers should not end in O or I!