"HP's Hilton code 9122532 appears in multiple aggregator sites including hotelcorporatecodes.com. FlyerTalk's London Hilton ID enforcement thread covers properties enforcing checks when discount depth exceeds 15-20% of flex rate. HP's corporate discount at Hilton is typically 15-30%. Hotels near HP/HPE headquarters in Palo Alto, Houston TX, and Bristol UK are more likely to have procedures for verifying HP employees."

"I've only ever been asked about it once and I basically said "Yes I work there" and there were no follow up questions. That was on a personal trip but booked through the portal Hilton set up that allows employees to book personal travel using the corporate rate."

"I called the hotel and spoke with someone who was adamant that I had booked a Government On Business rate and would need to show Government ID. I explained that there was a difference between having access to a Corp code which allowed access to HM UK Government rates (which I have done regularly for 15 years) and booking an OnBusiness Government rate directly by clicking the box on Hilton.com (which I have never done). She wasn't moving and insisted this was the same thing."