"Oracle's Hilton corporate code is widely circulated on public code-sharing sites. UK and Asia-Pacific Hilton properties have introduced systematic ID checks. Oracle being a high-profile tech employer near numerous Hilton properties (San Jose, Austin, London) means front desk staff are more likely to recognize Oracle employee IDs and actively request them."

"I run a Consultancy and work with clients across both Public and Private sectors. Many years ago (15?) a UK Government client (they are still an active client) shared a Hilton Corporate Code, which was to be used for stays required when working with them. This code gives access to (but not 'On Duty' rates). I use this code regularly across the UK (mainly London) without issue, staying most months at various London Hiltons."

"I would contact your corporate travel. I know some companies have one code for employee business travel and one for employees and their families. Some use just one for all. Shouldn't be too difficult to email to your travel team to get clarification."