"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."

"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."

"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."