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AT&T internet email address
Learn what your email address is with AT&T Internet service.
DETAILED INFOYour email address
If you're an existing AT&T High Speed Internet or dial customer, your email address may remain the same (some regional moves do not allow you to keep your existing email address). If you are not an existing AT&T High Speed Internet or dial customer, your email address will be in the format of username@att.net.