"Siemens Premium Hilton code (N0079268) is a higher-tier Siemens corporate code at Hilton. FlyerTalk's "London Hiltons now requesting corporate ID if using codes" thread specifically documented systematic enforcement for premium-tier corporate codes. Siemens' Munich and London presence means premium Hilton properties in those markets (Hilton Munich, Conrad London) encounter Siemens employees regularly. The "Premium" designation suggests deeper discounts, which correlates with higher enforcement probability."

"I was asked for my work ID when checking in at Hilton Tokyo in June on a corp rate."

"Thanks for the prompt response. It's odd - the difference in the rate I booked and the next cheapest Hhonors rate was only £20! It just doesn't seem worth the effort of protecting even if I had, somehow acquired the code when I shouldn't have. Do please report back on your stay - will be interesting to note if you are also asked for some ID."