As an AI language model, I can provide the information based on the available data. However, it’s important to note that the number of Airbnb listings can change frequently due to various factors. The following list represents the top 10 countries with a significant number of Airbnb listings as of October 2021:
1. United States
5. United Kingdom
Please note that this list may not be exhaustive or 100% accurate at all times, as the number of listings may change over time.