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Old Feb 13, 2020 | 1:50 pm
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WineCountryUA
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Originally Posted by mherdeg
....That leaves 10 digits of unique namespace for United-issued tickets. If they're all useable, that's one hundred million eticket numbers that United can ever have outstanding.....
Isn't a 10 numeric digit field closer to 10 billion unique codes?

And does not UA use 016 codes for more than "tickets', but any "fee" UA charges.

In reality, I think the 4-digit "form code" is not fully used, as IME 016xx , xx for UA.com issued tickets has been 23 or more recently 24 for the past 5+ years

Note 6 char PNR with a few misread number / character combos suppressed is at least billion or more combinations
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