MCC 3673 covers IBUSZ HOTELS merchants, classified under airline. To maximize rewards at these businesses, look for credit cards with broad spending bonuses or airline category multipliers. MCC Lookup Tool to find which cards earn bonus rewards here.
Marriott, Hilton, and Hyatt use MCC 3673. This code covers all hotel stays, room service, and other on-site purchases like spa treatments.
Cardholders often think dining at hotel restaurants doesn't count as lodging rewards. However, charges for meals in the hotel are typically coded under this MCC.
MCC 3673 stands for IBUSZ HOTELS. It is a four-digit Merchant Category Code used by payment networks to classify businesses in the airline category.
Merchants classified under MCC 3673 (IBUSZ HOTELS) operate in the airline sector. Card networks assign this code during merchant onboarding based on the primary business activity.
MCC 3673 (IBUSZ HOTELS) is not currently a dedicated bonus category for most major credit cards. For airline spending at these merchants, a flat-rate rewards card (1.5–2% on all purchases) is typically your most reliable option. Use our MCC Lookup Tool to find the best card for any specific merchant.
Currently, no credit cards in our database have a dedicated bonus category for MCC 3673 (IBUSZ HOTELS). Most purchases posting with this code will earn base rewards (typically 1–1.5x on everyday cards). A flat-rate cashback card is the most predictable choice for airline spending.
MCC 3673 is assigned to businesses providing ibusz hotels services. While this is a less common merchant category, any purchase that posts with code 3673 will be classified as 'IBUSZ HOTELS' by your card issuer, which determines whether airline category bonuses apply to that transaction.
MCC 3673 (IBUSZ HOTELS) and MCC 3000 (UNITED AIRLINES) are both in the airline category but cover distinct merchant types. MCC 3673 is used for ibusz hotels businesses, while MCC 3000 is assigned to united airlines merchants. Both may qualify for the same bonus category on your card — check your card's terms or use our MCC Lookup Tool to confirm.