"Arizona State University's IHG code (ASU) is an academic institutional code. University codes at IHG properties are used primarily for conference and academic travel. No FlyerTalk thread discusses ASU IHG verification incidents. Academic/education sector codes at IHG are the lowest-enforcement category — holiday Inn / Crowne Plaza near Phoenix (where ASU's main campus is located) are familiar with ASU travelers and rarely request ID."

"Code 150711 is confirmed in the FlyerTalk IHG rate code master list alongside Microsoft (100857558) and IBM (000243132). IHG enforcement: some franchises instruct staff to ask all guests; others only ask if discount is better than 15% of flex rate. IHG T&Cs explicitly list using corporate rates without entitlement as grounds to close IHG account. Holiday Inn Express: minimal enforcement; InterContinental/Kimpton: almost always verify."

"I work for BofA and the internal discounts website didn't list codes, instead directing employees to contact individual properties. I later confirmed the code is 109568. Unless you're employed by one of those companies, I would avoid using these codes. They do often ask for ID at InterContinental properties, though Holiday Inn locations rarely enforce."