"IBM (alt) Hilton code N2666284 is a secondary IBM code. IBM has multiple Hilton codes reflecting IBM's global corporate travel volume. The same FlyerTalk-documented enforcement pattern applies: "mostly never asked for ID" but with exceptions at gateway properties and a significant increase in European enforcement since 2022. IBM employee ID is a standard photo badge that Hilton staff recognize. The "alt" code likely targets specific IBM business units or international travel corridors."

"I know that previously the Hertz IBM rate was always fixed in the mid $30s for a full size vehicle with last car availability. A minivan was $175/week in Orlando even during President's week when the going rate was about $1,200. This is probably why Hertz and at least Avis has been more strict. I have found Marriott to be very strict, especially at key locations, when it comes to the government rate. Marriott wants travel orders, a government ID, and/or a government credit card. I found Hilton to be less strict for those government rates."

"I spent 5 bucks and printed a business card and ID for the code I use the most."