Using an Existing Domain (Redelegating)

• What's the difference between redelegation and registrar transfer?
• My domain name has not been associated with AT&T Yahoo! yet. What should I do?
• How do I verify that my domain is hosted at Yahoo!?
• Who is my domain registrar?
• What is a registrar?
• What is redelegation?
• What is registrar transfer?
• What is a name server?
• What are AT&T Yahoo!'s name servers?
• Can I move my domain name to AT&T Yahoo!?
• How do I use a domain name I already own with my AT&T Yahoo! plan?