"Shell's Hilton code is confirmed in public Hilton code databases. Shell's London Centre is a major HQ, and UK Hilton properties have documented systematic ID verification since 2022. Singapore and other Asia-Pacific Hilton properties enforce verification near 100% of the time — Shell's major APAC presence makes this code higher risk internationally. Houston-area Hilton properties routinely encounter genuine Shell 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 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."