Question: What is the IP Address of YouTube?
People sometimes want to know YouTube's IP address when they are unable to connect to the site by its domain name.
Like many popular Web sites, YouTube utilizes multiple Internet servers to handle incoming requests. These are the most common YouTube IP addresses
Just as you can visit the YouTube home page by entering http://www.youtube.com/
into your browser, you can also enter http://
followed by any of the above addresses - for example
If you cannot reach YouTube using http://www.youtube.com/, your Web host may be blocking access to it. In these cases, using an IP address based URL may succeed yet violate your host network's acceptable use policy (AUP).
Check your AUP or contact your local network administrator before using an IP address to connect to YouTube.
See also - How to Find the IP Address of a Web Site