After a decade of court battles, the Internet entrepreneur who filed the first legal challenge to a type of secret administrative order known as a national security letter revealed on Monday the breadth of an F.B.I. demand in 2004 for information about a customer.

National security letters, which empower federal investigators to seek certain customer records without court approval or oversight, were significantly expanded as part of the USA Patriot Act after the Sept. 11, 2001, terrorist attacks. In August, a judge ruled that the entrepreneur, Nicholas Merrill, could disclose what he had been asked to turn over if the government did not file an appeal within 90 days, and the deadline has now passed.

Mr. Merrill revealed that the F.B.I. in 2004 ordered his company, Calyx Internet Access, to turn over all physical mail addresses, email addresses and Internet Protocol addresses associated with one customer’s account, as well as telephone and billing records and anything else considered to be an “electronic communications transactional record.” The order said the content of communications between the customer and others should not be handed over.

The bureau also sought the account’s “radius log,” which a related court opinion said could include “cell-tower-based phone tracking information.” But the Justice Department told the court, the Federal District Court for the Southern District of New York, that the F.B.I. no longer obtained such data with national security letters.