How do I Contact Yahoo! Customer Service by Phone?

Phone Numbers
The Yahoo! headquarters can be reached at the following numbers:Phone: 408-349-3300
Fax: 408-349-3301The office hours are 8:30 a.m. to 5 p.m. Pacific Standard Time.The Customer Service Billing number is 866-562-7228, and the Small Business Billing Support line is 800-318-0870. For technical support for small businesses, call 800-318-0783.The hours of operation for these numbers are 6 a.m. to 6 p.m. Pacific Standard Time Monday through Friday.
Toll-Free Numbers
Yahoo! has several toll-free numbers. The number for the United States is 800-318-0631, while Canadians can call 877-722 3755 for assistance.
Other Customer Service and Fax
There are several other direct lines, if you fail to reach Yahoo! Customer Service thought the previous numbers:Customer Service: 866-562-7219
Press '2' when prompted to talk to a person directly.The direct number for Yahoo! account concerns is 408-349-1572.