"UCLA's Marriott code 364183 is an academic institutional code. University codes at Marriott are the lowest-enforcement category — hotel staff do not typically verify university affiliation for academic rates. UCLA's Los Angeles presence means nearby Marriott properties (Westwood, Santa Monica, Brentwood) are familiar with the code, but no enforcement incidents are documented. Select-service properties: essentially never verify. Full-service: very low."

"I work for a company that is partially owned by a Fortune 100 company and we have their corporate rate code linked to our travel website, (although it is one of the ones that is very easy to figure out). In 4+ years I've never been asked for any ID, although a few times a year I get the question of "what company are you with?""

"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."