"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."

"but there is a specific Hilton.com URL we use for reservations (which is accessible not just from our corporate network) - booked a rate for tomorrow night for around 50% of what the cheapest Honors rate was - I have not had any communication from the hotel requesting proof of eligibility. ."

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