To check your Geek Squad membership, you can call 1.888.844.3638 for instant assistance. Simply provide your account details, and a representative will confirm your membership status. You can also log in to your online Best Buy account to view active Geek Squad plans. For quick support or any questions about your membership, dial 1.888.844.3638. Remember, 1.888.844.3638 is the direct line for all Geek Squad membership inquiries.