"A FlyerTalk thread titled "London Hiltons now requesting corporate ID if using codes" (November 2023) documents: "Rule was show a company ID card, or pay the full walkup rate — quite a shock if unexpected." Users report that in 10 years of stays, they had never been asked until 2022-2023, suggesting a recent policy shift. The crackdown is attributed to deep corporate discounts (50%+ off rack rate) at Fortune 500 codes — AT&T as a major carrier falls into this high-value discount tier."

"Rule was show a company ID card, or pay the full walkup rate. Ouchy if not expected."

"I believe that the major companies that receive significantly discounted rates, are those that typically issue a corporate card and/or a picture ID to their employees. The US federal government and even the State government certainly do issue ID to their employees along with corporate charge cards to their travelers. I don't think that it's an issue with a 10% general discount such as you would get with AAA. it's the corporate discounts (for typically Fortune 500 companies and the government), where the rates can be 50% or more of rack rate. The negotiated rates."