"McKesson's Hilton code N9890367 is for the pharmaceutical distribution giant. McKesson HQ is in Irving TX (relocated from San Francisco). Healthcare sector codes at Hilton carry moderate enforcement risk — similar to pharma company codes. Hilton's London thread documented systematic enforcement for corporate codes; McKesson has UK operations. US domestic Hilton: 20% general verification rate. No McKesson-specific denial documented at Hilton, but corporate contracts with major pharma distributors are closely monitored."

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

"I've experienced this at the Doubletree Airport TPA. I probably caused it as I spent 100 nights there on our company rate Our corp rate at that location is fantastic. A friend of mine was at Hertz recently and they were checking corporate identification. It may be hit or miss, but I now expect to show my company or government badge. I keep them in my backpack in the first pocket so I can quickly give them to the CSR."