"Nike's Marriott corporate code NKE is listed on corporate code sharing sites but has no documented FlyerTalk or Reddit thread specifically discussing verification experiences. Nike is headquartered in Beaverton, Oregon; Marriott properties in the Portland metro area may be more familiar with Nike employees. The NKE code is less frequently discussed than Boeing or ExxonMobil codes, suggesting lower community awareness and potentially lower audit frequency. General Marriott enforcement in the US is well under 5%."

"I also use AAA if the corporate is not available. In 10+ years of using AAA I had never been asked to show the card until last month in FL at two different properties. One was a HGI in Palm Beach Gardens and the other a CY in Stuart. Stayed at both since on AAA rate and wasn't asked."

"Deutsche Bahn's Marriott code 11353 is a German railway operator code in the global GDS system. Outside Germany, this code is essentially unknown to hotel front desk staff. German Marriott properties near Deutsche Bahn offices may be more familiar, but the code is rarely discussed in English-language travel forums. No verification incidents found. European public transit company codes attract minimal scrutiny."