"Kraft's IHG code (105406) is a food and beverage corporate code. Kraft Heinz (as it's now known) HQ is in Chicago IL and Pittsburgh PA. IHG enforcement: Holiday Inn Express essentially never checks food company codes; Crowne Plaza occasionally. No Kraft+IHG specific verification incident documented. Consumer packaged goods codes at IHG follow the same pattern as McDonald's and Coca-Cola: low scrutiny due to ambiguous franchise/supplier affiliation."

"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."

"That being said, I've never been asked to provide any proof. It's not something I just do all the time, but I've never had any problems when I have."